Write the fraction 7 over 33 as a decimal

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.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

The statement tan theta= -12/5, csc theta=-13/12, and the terminal point determained by theta is in quadrant two