Answer:
slope = -2
Step-by-step explanation:
rise/run: y2-y1/x2-x1 .
=12-18/4-1 = -6/3 = -2
Answer:
I believe the answer you chose is correct. D
Answer:
x=10
Step-by-step explanation:
Answer:
9 cents per day
Step-by-step explanation:
1 week = 7 days
Each razor lasts 1 week = 7 days
10 razors last 10 weeks = 10 * 7 days = 70 days
cost per day = (total cost)/(number of days)
cost per day = $6.30/(70 days) = $0.09/day
