Charge per hour = $8.75
Number of hours = x
earnings = y
the expression is:
y= 8.75 x
Friday (6 hours) replace x by 6
Expression 1 : y = 8.75 (6)
Same for Saturday
Expression 2 : y= 8.75 (6)
Total earnings:
Friday= 8.75 x 6 = $52.25
Saturday: 8.75 x 6 = $52.25
Total earnings = 52.25+52.25 = $105