### Home > PC > Chapter 2 > Lesson 2.3.7 > Problem2-156

2-156.

Jack makes $5/hr for the first six hours on the job and then$8/hr after that. Explain why J(t), Jack’s earnings after he works t hours, is: Homework Help ✎

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For the first six hours, Jack makes $5/hr, meaning at the end of six hours, he has earned$30. For anytime after six hours
(where he has already earned $30) he adds to the$30 by making \$8 times the number of hours worked over six hours.