Linear Functions

SAT Math· difficulty 5/5

A landscaping firm charges \40 + $25/hforjobsunder8h,and/h for jobs under 8 h, and $240 + $30$/h above 8 h. Cost for 12-hour job:

  • A

    \370$

  • B

    \340$

  • C

    \380$

  • D

    \360$

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Explanation

240+30(128)=240+120=360240 + 30(12 - 8) = 240 + 120 = 360.

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