Which equation represents the situation: A 20 year old is the same height as a 30 year

A. f(20) = 30
B. f(30) = 20
C. f(30) = f(20)
D. f(20) > f(30)
E. f)20) < f(30)

PLS I NEED HELPP

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Use the expression below.–4b + 8c + 12 – 8b – 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(–2b + c + 3) b. 3(–2b + c + 3) c. 4(–2b + c + 3) d. 6(–2b + c + 3)part cwhat is the value of the expression when b = 2 and c = –3? enter your answer in the box.