Sam earns $10 an hour on Math tutoring. For the first month, he earned $200; and for the second month, he earned $150 more than the first month. How many hours did he spend on tutoring for two months?
For the second month, Sam earned $200 + $150 = $<T>add(200, 150)=350
So, he earned a total of $200 +$350 = $<T>add(200, 350)=550 for the first two months.
Therefore, he spent $550/$10 = <T>divide(550, 10)=55.0 hours on math tutoring for the first two months
