Sophia has $20. she buys a hair band for $3.99, gum for $1.29, and a brush for $6.75. not including tax estimate how much change she should receive. show your work

First I would add $3.99, $1.29, and $6.75 to see the total amount she spent.

3.99 + 1.29 + 6.75 = 12.03

She spent a total of $12.03. Now, subtract this amount from $20 to get your answer.

20 - 12.03 = 7.97

She should receive $7.97 in change.

I hope this helps!

-Mikayla

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.