Answer:
The domain is all of the x values. From the graph, all of the x values are greater than or equal to 0 so the answer is x ≥ 0.
The 15% tip would be 50*0.15=$7.5
<u>it is 0.4</u>
Step-by-step explanation:
x = 2
21
you plug in 5 for a and 6 for b and solve.