Answer:
A. 15
Step-by-step explanation:
1. 4 5.-22 9.-60 13.-85
2.-7 6.-33 10.33 14.-21
3.-36 7.87 11.-78 15.-23
4. 78 8.55 12.24 16.149
Step-by-step explanation:
(2$+1.5&)+0.9$X=20$
3.5$+0.9$X=20$
0.9$x=20$-3.5$
x=16.5$/.9$
x=18.333
so he can travel 18.333miles.
first we need to add the two separated cause of 1.5 Dollar in $2 tip which give us 3.5 dollar that is to be subtracted from the $20 you have. then the money that is left in your pocket is 16.5 dollar s this will be deducted 0.9 for every mile so dividing 16.5 by 0.9 gives 18.333.

The answer is the third option, -7.
Hope this helps.
10% of $20 is $2 (take off the end 0)
$20+10%=?
$20+$2[this is 10%]=$22
The selling price is $22