a) A group of 50 people are going to run a race. The top three runners earn gold, silver, and bronze medals. b) Creating a nine player batting order from the 14 players on the baseball team. EECG c) There are 30 applicants for four Software Tester positions.​

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

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.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b