Explain why 3/4 and 9/12 are equivalent?

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.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

The function show two sisters' savings account and the rate at which they plan to deposit money