Have a cat: 17
Don't have a cat: 15
Have a dog: 21
Don't have a dog: 11
For the "have a..." you include the center, but for the "don't have a..." you only count the other side without the center.
Answer:
3x45y+3+4
Step-by-step explanation:
A) Let C = Total cost
C = 1.085
b/c) - you need the price of the product you are buying
171 hours including the 3 hours you said.
