Can someone do question 4 for me with step by step instructions

He concluded that a heavier object dropped from the same height as a lighter object will land

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation