The rectangle shown is dilated by a scale factor of 2. What is the length of side A'B' and side B'D'?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

What is the value of f(x) = 2.2 for f(-2)?