Divide.
Write your answer in simplest form.
2/3 divided by (-2/7)

Find the zeros of each function. f(x) = x^2 + 5x - 6

Factor and solve to find roots x squared -x - 90 =0

What will be the end result for the taxpayer who filed his federal income tax return using the 1040ez form shown belowa he'll owe $173b he'll receive a refund of $173c he'll owe $3921d he'll receive a refund of $3921