A rectangular garage is 5 meters long and 3 meters wide. It costs $8.00 per square meter to put in a new concrete floor. How much would it cost to put a new concrete floor in the garage?

The area of the garage is:

5 m x 3 m = 15 square meters

To put in a new concrete floor for the garage, it would cost:

15 square meters x $8.00/square meter = $120.00