42
Step-by-step explanation:
If Mark purchased 3 yards there would be 509 yards left, divide that by 12 and you get 42.416 yards reamaing, or 42 full 12 yard fabrics.
3x + 4y -25 =0 represents the amount of change sianna should recieve
no solution
step-by-step explanation:
there is not enough information in the problem to solve.