If mn = 4, nc = 10, and rs = 2, find sc. a) 5 b) 10 c) 15 d) 20

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.

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?