This is taking me forever and you guys are really helpful please help.

The area of a 25-inch tv screen is 300 square inches. the area of a 40-inch tv screen is 768 square inches. the are of the smaller screen is what percent of the area of the larger screen?

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

Give all possible names for the line shown.calculation tip: lines can be written with either point first.