Find the sum 4/x^2-9+7/x+3
can't figure it out : (

Someone me what is the area of this figure? 18m 18m 8m 16m

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.

Yvaries directly as x. y =90 when x=6. find y when x=13