Please answer both questions if you can (The photo and this question)

A different question: Circle A has a diameter of approximately 20 inches and an area of approximately 300 in2. Circle B has a diameter of approximately 60 inches. Which of these could be the area of Circle B?: Explanation needed.
A: About 100 in2
B: About 300 in2
C: About 900 in2
D: About 2,700 in2

The answer for the first questions is C because the actual area for circle B is 282.6 because of the formula A = Pi*r^2 which when put in to solve the problem is, A = 3.14*90.

Let me solve the picture now...

Ok the answer to the picture is 191.54units.

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.