Wouldn’t it just be 2.56 miles?

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.

Which expression is equivalent to the expression shown?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?