11u=5v+35. 8v=6u+62 how do i eliminate these?

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red

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.