Answer:
Each pen costed $5.
Step-by-step explanation:
Simple, the coefficient (5) is the cost for one of the pens & the x is the amount of pens bought.
Hope this helped & please give me the brainliest if it did!
Answer: 5
Step-by-step explanation:
Answer:
Step-by-step explanation:
c and d
Answer:

Step-by-step explanation:

Here



(12 - 2) * 180 = 1,800/12 = 150
(8 - 2) * 180 = 1,080/8 = 135
B. 8 sides