(6.64 x 1010) - (2.8 * 10%)
write your answer in scientific notation.

6706.12

Step-by-step explanation:

by multiplying 6.64*1010 first u get 6706.4

then multiply 2.8*10/100

u get 0.28

finally subtract 0.28 from 6706.12

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.