Jody F. answered 02/24/18
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Math and Science Tutor specializing in Regents prep and Common Core
For the unitary method, you would need to first find the amount earned for 1 hour (1 unit), by dividing the amount earned by the number of hours worked. That is, 240/8. Then multiply that unit rate by the number of hours to be worked (30 hours, in this problem) to get the answer. Try it and see what answer you get!