Eric spent a total of $50.75 at the school bookstore. He bought a calculator for $29.75 and some pens. Each pen cost $1.50. How many pens did Eric buy? Enter your answer in the space provided.

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Plz a. s. a. p.the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5