What is the area of a parallelogram with a base of 28mm, a side length of 20mm, and a height of 10mm?

Solving algebraic equations 2m+3=11

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.