Someone please help

Will mark brainliest.

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

Find the area of a parallelogram with base 15 yards and height 21 2/3

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3