What is the simplified fraction is equal to 0.53 ?

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.

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²