What is F(x)=4x+100 if x=5?

The triangles are similar. what is the value of x? show your work.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000