6.8 oz would be the final answer but an expression could possibly be 8-4.7+3.5
Answer:
$9.50h, $(9.50h +2.20rh)
Step-by-step explanation:
Every hour ----- $9.50
h hours ----- h ×$9.50
Amount of money Mr Smith earns in h hours
= $9.50h
If he fixes a watch per hour, additional income= $2.20h
If he fixes r watches per hour, additional income= $2.20rh
Total income
= $(9.50h +2.20rh)
Translate to english and i can help
500/20 = 25kcal per piece
8 * 25 = 200kcal.....yes, he is able to have 8 pieces
