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For #2, 135 isn't correct but thank you for helping me solve 1 and 3. I did not look at #1 in the way that you showed. 

\(\forall \epsilon > 0 \text{ show }\exists \delta \ni |x-3| < \delta \Rightarrow |3x+4-13|< \epsilon\)

\(|3x+4-13| < \epsilon \Rightarrow\\ |3x-9| < \epsilon \Rightarrow \\ -\epsilon < 3x-9 < \epsilon \Rightarrow \\ 9-\epsilon < 3x < 9+\epsilon \Rightarrow \\ 3-\dfrac{\epsilon}{3} < x < 3+ \dfrac{\epsilon}{3}\\ |x-3|< \dfrac{\epsilon}{3}\)

\(\text{so choose }\delta = \dfrac{\epsilon}{3} \\ \text{and working everything backwards you end up with}\\ |3x+4-13| < \epsilon\\ \text{as desired}\)

1) If x/2, x/3, and x/6 are angle measures of a triangle, they must add up to 180.

x/2 + x/3 + x/6 = 180

Find the common denominator:

3x/6+2x/6 + x/6 = 180

Multiply both sides by 6:

3x+2x+x=1080

6x=1080,

x = 180

x/6, the smallest angle, is 30.

2) Correct me if I'm wrong, but isn't it just 135?

3) 108/120 = 9/10

Can't you just plug in the value 3 for x?

What do you mean by formal definition of a limit?

Yah!   That DOES make it way easier.....did you get an  answer?

.2  kilograms

The  " -200 "   decreases the amount owed by $200 every month

So...he pays $200 per month

Here is what I meant by all that. The top line (sliding cable) is 180°, while the three angles below are all 60°. This made it WAY easier

-2.4(55) + 75 =

-57 m  in 55 sec

-2.4(110) + 75 =

-189 m in 110 sec

So...it drops  189 - (-57)  = 132m   every 55 sec

The expression 100 + 20m gives the volume of water in Marcel’s pool (in liters) after Marcel spends m minutes filling his pool. What is the volume of water in Marcel’s pool after he fills it for 5 1/4?

Put in  5 1/4   (5.25)  for m in the equation to find V

v = 100+ 20m

      100 + (20)(5.25) = 205 liters

OK....post 'em up!!!

can you answer a few more for me please????

The fee  will increase by  .12 (100)  =  $12

We've all lost our marbles on here....!!!!

thank you so much 

You are correct !   D'Oh!       If NO marbles are used   n = 0     then w = 32 l  

what about the 32 what does that mean

You have no length shown.  

Hmmmm..... I corrected this post due to guest's input below !   Thanx !    I can tell you that  640 marbles will completely fill the aquarium. 

Good one Chris  LOL

thank you so so so much

thank you

\(28 = -9x - 8 + 5x \\ 28 = -4x-8\\ 36=-4x\\ -9 = x\)

\(-18=7u+9-10u\\ -18 = -3u+9\\ -27=-3u\\ 9=u\)