Find the Amount of Tips

The hourly rate of a waiter is $4 plus tips.  On a particular day, the waiter worked 8 hours and received more than $150 in pay.  Which would be the amount of tips the waiter received?
A.)  $18.75
B.)  $32
C.)  $118
D.)  $120.75

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x = the amount in tips

4(8) + x > 150   {hours multiplied by hourly rate plus tips is more than 150}
32 + x > 150   {multiplied 4 by 8}
x > 118   {subtracted 32 from each side}

Amount in tips is greater than $118 

D.)  $120.75  

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