AA'B'C' is a rotation of AABC 90 about the origin. What is the length of A’C’?

If f(x) = 3-2x and g(x) =1/x+5 to what is the value (f/g)(8)

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.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.