A variable needs to be eliminated to solve the system of equations below. Choose the correct first step. -9x-8y= 41
-9x-2y=71

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm.it decreased by the same amount each year. what was the change in grandpa ernie's height each year