If f(x)=3x^2-9 and g(x)=x^2+1 find (f+g)(x)

Asmall car averages up to 29 more miles per gallon of gas that an suv. if a small car averages 44 miles per gallon, what is the average miles per gallon for an suv?

Cindy uses 1-inch cubes to find the volume of a jewelry box shaped like a rectangular prism. she uses 780 cubes to completely fill the jewelry box with no gaps or overlaps. if the jewelry box is 13 inches long and 5 inches wide, how tall is cindy’s jewelry box?

The tangent of an angle is not which of the following? a) ratiob) proportionc) fractiond) opposite over adjacent