A. No x value can have multiple different outputs.
D. The change in y between x values is 4 but the function when x is 0 is -2
Answer:
Mario bought five books.
Step-by-step explanation:
If Mario bought n magazines, then n is the solution of
23.85 = 12.60 + n*2.25
23.85 - 12.60 = n*2.25
11.25 = n*2.25
n = 11.25/2.25
n = 5
20x≥100
x≥5
5 gallons needed to travel 100 miles
