Answer:
a) C = 75n +60
b) see graph
c) 210
Step-by-step explanation:
75 n -C + 60 = 0
Add C to each side
75 n -C + 60 + C = 0+C
75 n + 60 = C
Rewritng
C = 75n +60
This is in slope intercept form where y = mx+b
75 = m and 60 =b
See the graph
The slope is 75 and the y intercept is (0,60)
The scale is 1 on the n axis ( time) and 100 on the C axis (cost)
Let n be two hours
Cost = 75(2) +60
=150 +60
=210
