Write the expression using only positive exponents. Assume no denominator equals zero. 4y^-2

Answers: none of these
-8y^2
1/4y^2
16y^2
4/y^2

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. what is the total cost of the principal and interest for this loan rounded to the nearest dollar

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

What is the area of the shaded sector?