Sergio runs 2 1/4 miles in 30 minutes. write the ratio in fractional form and determine sergio's speed in miles per hour.

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

Tell whether the two rates form a proportion