Linear Functions

SAT Math· difficulty 4/5

Internet bill: \45flatplusflat plus$0.05$/GB above 100 GB. Bill for 350 GB used:

  • A

    \50$

  • B

    \62.50$

  • C

    \57.50$

    check_circle
  • D

    \67.50$

Explanation

Excess =350100=250= 350 - 100 = 250; cost =45+0.05(250)=45+12.50=57.50= 45 + 0.05(250) = 45 + 12.50 = 57.50.

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