Find the slope of the line through each pair of points. (20,8), (9, 16) plz answer quick!

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.