Which of the following is a polynomial with roots 5, 4i, and −4i?
a.) f(x) = x3 − 5x2 + 20x − 16
b.) f(x) = x3 − 5x2 + 16x − 80
c.) f(x) = x3 − 20x2 + 5x − 16
d.) f(x) = x3 − 16x2 + 80x − 5

Write an expression that represent sarah’s total pay last week.represent her hourly wage with w monday 5 tuesday 3 wednesday 0 noah hours wednesday 8 only with w wage did noah and sarah earn the same amount last week?