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oh... so that explains it my notes where wrong

This can't be geometric, DC, because the ratio, r, between terms isn't constant

To see this

305r = 326.5   →  r  ≈  1.07049

But

305r^3  = 361.5 → r = 1.05829

And you seem like a very happy person too! 

Well thank you! I am a very happy person! 

You must be a very happy person.

Same, @Gh0sty15! I hate Mondays, too, but the rest of the days are pretty good!

I always do. Except for Mondays. And Tuesdays. Probably Wednesdays. And maybe Thursdays. Fridays are...eh. 

Same @MagikalRedNiteTiger. I'm a Junior in Highschool, too. 

I'm a Junior in Highschool.

Oh...that was the same person? I can see why that was a bit rude... 

8th here

Yes i know he said 'thank you' which is great but how can other people learn from the post if he deletes it and he has deleted many posts today!

Admin makes the rules.  If this sort of thing becomes a regular event I am sure he will change the rules accordingly but it is a pity for all the people who do the right thing in the first place. 

AND I am not offended in anyway by your post gh0sty :)

Maybe there should be a rule where guests can't edit answers? (Just suggesting. Please don't take offense)

And he did say thank you...

The first one is even becasue it is symmetrical about the y axis. That is  f(x)=f(-x)

The second one is odd because it has 180 degree roational symmetry about (0,0) 

i.e.      f(-x)=-f(x)

The third one is neither.

eighteen years afterpurchasing sgares in a mutualfund for $6300, the shares are sold for $11,100

xy=((-9y)/2)

What do you want done with this?

STOP deleteing your questions.

It is extremely RUDE!

1 day  = 24 hrs

30 min  = 1/2 hr

So

 58 days, 15 h, and 30 min  =

58 (24) + 15 +1/2   =  1407 + 1/2  hrs

1 inch / 4 hrs  x     1 ft  / 12 inches  x   24 hrs/ 1 day  =   [24] / [4 * 12]  =  24/48 ft  = 1/2  ft   

"65" represents the meal cost [ not including the tip  ]

"x"  represents  the tip percentage 

The product of a number, k, and seven is three more than the quotient of the number and three-fifths.

Write an equation to represent this situation.

7k - 3  =   k / (3/5)       simplify

7k - 3 =  (5/3)k

The flag that inspired the national anthem was a rectangle 30 ft wide and 42 feet long. Pieces of the flag have been lost. It is now 30ft wide and 34 ft long. How many square feet have been lost?

Original area  =  30 x 42  =  1260 square feet

New Area  = 30 x 34  = 1020 square feet

1260 - 1020  =  240 square feet have been lost

Paul opens a savings account with $565. He saves $82 a month. Write an equation modeling how much he has after t months.

Let A  be the amount after t months....so we have..........

A = 82t + 565

The product of a number, x, and ten is twelve more than the product of the number and five-eighths.

Write an equation to represent this situation.

Let  x  be the number.......

10x = (5/8)x + 12

\(\[f(x) = \begin{cases} 9x+16 &\text{if }x<2, \\ 2x-14&\text{if }x\ge2. \end{cases} \]If $f(x)=-2$, find the sum of all possible values of $x$.\)

9x+ 16  =  -2                      2x - 14  = -2

9x = -18                             2x = 12

x  =  -2                                 x = 6

So  .........    -2 + 6  =  4

There is nothing here to "solve" in the "normal" sense....we are just isolating the variable, y

Unfortunately, you made a mistake transitioning from these 2 steps.

\(8\left(\frac{1}{2}y+1\right)-3=5+4y\)

\(4+8-3=5+4y\)

Upon distributing the 8 to both terms in the parentheses, you forgot to preserve the linear term (the y). Therefore, the line should be:
 

\(4\textcolor{red}{y}+8-3=5+4y\)

If you continue solving from here, you will get \(0=0\), which means that all solutions are valid. 

5 + 1/5  =  26/5