Answer:
here is the answer bae. Feel free to ask for more
Answer:
ok
Step-by-step explanation:
Answer:
D. -4
Step-by-step explanation:
the slope formula is
m=(y2-y1)/(x2-x1)
(x2,y2) = (4,7)
(x1, y1) = (5,3)
So (7-3)/(4-5) = 4/-1 = -4
He would have 21 before he bought the 10 stamp because 31-10=21