Last month it rained 16 out of 30 days. Which ratio is equivalent to the number of days it did NOT rain last month? A.32:60

B.8:15

C.7:15

D.6:3

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old

The hockey team has been great! in 2008 they won 20% more games than in 2007. in 2009 they won 50% more games than in 2008. what was their overall percentage increase from 2007 through 2009?