(2x^4 + 4x^3-8) + (x^2- 2)

Kai walked one and two-thirds of a mile on saturday and four and one-sixth of a mile on sunday. how many miles did kai walk?

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.