12. Multistep A farmer needs to buy fertilizer for two fields. One field
is shaped like a trapezoid, and the other is shaped like a triangle.
The trapezoidal field has bases that are 35 and 48 yards and a
height of 26 yards. The triangular field has the same height as
the trapezoidal field and a base of 39 yards. Each bag of fertilizer
covers 150 square yards. How many bags of fertilizer does the
farmer need to buy?