Answer:
10
Step-by-step explanation:
Look at where the one gallon gas is, it's point comes to ten. :)
The answer is b
16-9=7
7+8=15r
I would recommend combing like terms (ex- 10x-9x=x) so it could be 15x^2+x-6 . I recommend using something like mathpapa to show you step-by-step how to do it, and if you know, then it just gives you a quick answer
1-2/3=1/3
1/3^2=1/9
1/9•1/4=1/36
1/36+1/3=13/36
13/36 is your answer