Chantal knits sweaters to sell. Each sweater takes 4 balls of yarn. Each ball of yarn costs $6. How much money will Chantal gain in all 28 sweaters if she sells each sweater for $35?
Thoughts? Step-by-step reasoning:
The 28 sweaters need 28 x 4 = 112 balls of yarn. So, Chantal will spend 112 x $6 = $672 in all for the balls of yarn. Her total earnings for selling 28 sweaters is $35 x 28 = $980. Therefore, Chantal will gain $980 - $672 = $308.
Thus, the answer is 308.