0.87 = 87/100 <=== this is the fraction
Answer: 14 Units
Step-by-step explanation: Subtract (10-2) and (11-5)
For this case we have:
Cost of manufactures of T-shirts 
where x represents the number of T-shirts
Part A:
Substituting
in the total cost equation you have to:

Thus, the cost of 8 shirts will be 
Part B:
If
then

Thus, the cost of 12 shirts will be 
Answer:
