Jennifer babysat for 7 hours and earned $52.50. what is her hourly rate of pay?

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

How do i do this? i don’t understand

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170