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7749PX8CE:

Shawna opens a bank account with $400. The account accrues 8% interest compounded annually.

How much money, to the nearest cent, will she have in her account at the end of 4 years? (Use the formula A=P(1+rn)nt, where P= initial amount of money, r = interest rate, t = the number of years, and n = number of times the interest is compounded per year.)

ketwan:

8-)
whats the side lenth of a square

Fireking1992:

What is 503 /2

sabrina:

10(c+2)when c=9

123:

3(4x^12)

Pea:

:?: What is one squared?

elka32312:

:!: if for the first second of a minuit i give you one penny and for second i give you two and for third i give you four and for fith i five you eight. how much would you have after a minuit?

IQRaiser:

How much wood could a woodchuck chuck if it chucked 3.98 centimeters of wood a second and it was chucking for 9.876 seconds?
What percentage of the wood would it be if there was 222.345 inches of wood?


I started this off as a silly question somewhere else but then turned it into a helpful review question if you are studying:
-Percentages to fractions /Fractions to percentages
-Proportions
-And more (probably because there's always more I haven't thought of yet or haven't learned)

high schooler:

2x - (x - 3) = 5 ; open the brackets - remember the '-', so the it becomes +x+3
2x+x+3 = 5

Now it is almost too easy.

samgelinas:

zack7713:

to get to 23

5 + 5 + 9 + 2 + 2

zack7713:

to get to 23

zack7713:

to get to 23

zack7713:

if i have 2 get 2 23 and can only use 5,2 and 9 what r 2 ways to do it?

Alan:

tehya411:

what is the pearson r formula

Pearson's r is a measure of the degree of correlation between two data sets (X and Y, say). It is a number between +1 (complete, positive correlation) and -1 (complete negative correlation). The formula is:

pearson.PNG

tehya411:

what is the pearson r formula