Translate to an algebraic expression. alex had x dollars before spending $16.50 for a book. how much did he have after the purchase?

Triangle xyz has vertices x(1,3), y(0,0)

Identify the polynomial. a2b - cd3 a.monomial b.binomial c.trinomial d.four-term polynomial e.five-term polynomial

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?