Keaton has a farm of oranges and apples. He can harvest his oranges every 2 months and can sell the harvest for $50.  He can harvest his apples every 3 months and can sell this harvest for $30. How much money can Keaton earn every year?
Keaton can harvest his oranges every year is 12/2=<T>divide(12, 2)=6.0 times.
So the total money he earns for his oranges every year is $50 x 6 = <T>multiply(50, 6)=300
He can harvest his apples 12/3= <T>divide(12, 3)=4.0 times in a year.
So the total money he earns for the apple in a year is $30 x 4 = <T>multiply(30, 4)=120
Therefore, the total money he earns for his oranges and apples is $300 + $120 = $<T>add(300, 120)=420
