Answer:
174
Step-by-step explanation:
1
2 to 3 = 6/9
18 to 12 = 6 to 4
15/45 = 1:3
3:2 = 12 to 8
7:4 = 21/12
2/5 = 4 to 10
1) Positive
2) Undefined
3) Negative
4) Zero
Plan A would be the least expensive
Plan A= $0.45x100= 45, 45+40=$85
Plan B= $0.35x100= 35, 35+70= %105
(Each plan is for 100 minutes)
