I would like help solving my math homework.

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

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'