Answer:
A and B would be points located along the line itself.
C and D would be points either left or right of the line, but not on the line itself.
Step-by-step explanation:
12.075
Explain:
Price after mark-up: 10*115% = 11.5
Price after sales tax: 11.5 * 105% = 12.075
7,14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119,126
18,36,54,72,90,108,126
So the first person to get both of them is the 126th person
I thank it is a. yards i am no sure that is right