amount spent = y
pounds of potatoes = x
dollars per pound = m
other ingredients cost = b
y=mx+b
Answer:
45.050 or rounded, 45
Step-by-step explanation:

since x is at the bottom then switch
which is 45.050
Answer:
See photo
Step-by-step explanation:
= 
1 = slope intercept
Answer:
2/10 and 6/30 and 8/40
Step-by-step explanation:
2/10 reduces to 1/5
6/30 reduces to 1/5
8/40 reduces to 1/5