Answer:
a) y=25x+200
b) 25(53)+200 = 1525
Explanation:
1) A linear equation would mean you need y=mx+b
2) Check how much it's being added per 5 x's then put it into the "M" (m=25)
3) Use your new m to subtract to find "B" (b=200)
4) Solve everything with your equation.