Benny skates at a circular rink that has a radius of 4 yards. If he uses 3.14 for pi what are would he estimate for the skating rink

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

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.

Need asap i will give brainliest and 98 points classify each pair of numbered angles corresponding, alternate interior, alternate exterior or none o these