Anita earns 60 points every time she shops at a grocery store. she needs a total of 2,580 points to receive a free prize. so far, she has earned 480 points. how many more times will anita have to shop at the grocery store in order to earn the additional points she needs for a free prize?

35 times

Step-by-step explanation:

The points Anita has remaining for a prize is  2580 - 480 = 2100 points

Since each time she earns 60 points, to get 2100 points, she needs to go:

times

She needs to go 35 times

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.