1.find the slope between these 2 points: (5,-5) and(3,-5)2.find the slope between these two points: (2,3)and (4,5)3.find the slope between the two points (-5,5)and (3,-5)4.find the slope between these two points (9,9) and (12,15)

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

W-16=-12 solve each one step equation plz

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1