7.94 = ???

A. 7.940
B. 7.094
C. 7.490
D. 7.904
E. 7.049

A

Step-by-step explanation:

When you add a zero, it will never matter if you put it in the last place of a number (when behind the decimal point), so:

7.94 = 7.940

Answer is A

Step-by-step explanation:

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.