Someone please help quickly. If you were to randomly survey 20 people at 50 randomly chosen high schools, would this be a random sample? Why or why not?

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

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?