Autumn sells laptop computers for $800 each. if she sells 57 computers, how much money does she earn?

Which best explains why this triangle is or is not a right triangle?

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.