10. need help with this question-percentages and proof

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys