Please answer these question(s)! It has to do with math statistics. I will give you brainliest and thanks! Please answer my other questions!

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.

What percent of the circle below is shaded?

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1