Answer :
Y=10x+5. Y is the amount made/needs. X is the hours. 10 is per hour. 5 is the tip. She needs to work 10 hours and makes 105 dollars.
y=10x+5
100=10x+5
-5 -5
95=10x
95/10=10x/10
9.5=x rounds up to 10
y=10x+5
100=10x+5
-5 -5
95=10x
95/10=10x/10
9.5=x rounds up to 10