Question 849504
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Hi,
using:
hrs  Cost
3   $89.25
6   $118.50
 3h + f = $89.25    |multiplying thru by -2 to  eliminate the h variable
<u> 6h + f = $118.50</u>
 -6h -2f = -$178.50
<u> 6h + f = $118.50</u>
     f = $60
 3h + $60 = $89.25
    3h = $29.25
     h = $9.75 per hour
 y = $9.75x + $60
CHECKING our answer***
 $9.75*14 + $60 =  $196.50
Wish You the Best in your Studies.