Answer:
12.6%
Step-by-step explanation:
12.6% is 30 percent of the bill
12.60
To find the tip, take the amount of the bill and multiply by 30%
42 * 30%
Change to decimal form
42 * .30
12.6
Answer: x= -1
y= -2
-4x+3y= -2
y=x-1
-------------------
-4x+3(x-1)= -2
-4x+3x-3= -2
-x=1
x= -1
y=-1-1
y=-2
0.16 miles
