What is the sum of the first 7 terms of the series −8+16−32+64− ? enter your answer in the box?

inconclusive

Step-by-step explanation:

these are the powers of #2 but the question does not definitely state where the series begins. the series looks like this 1-2+4-8+16-32+64-128+256-512

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.

if you was gonna solve for a, a is a   < -12