How do i find the height of a trapezoid when i only know the two bases

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

What is the area of a rectangle with vertices (-8,-2), (-3,-2), (-3,-6), and (-8,-6)? units