You could say:
y = 4x + 10
John runs 10 miles a week, after every month he adds 4 miles.
y = 3x + 15
Mary runs 15 miles a week, after every month she adds 3 miles.
'y' would represent the total miles and 'x' would represent the number of months.
Answer:
Step-by-step explanation:
Take original price divide by one hundred multiply that by percentage, subtract what you get from original price and that’s your sale price
Answer:

Step-by-step explanation:
This is my best guess