Answer:
y=4x-13
Step-by-step explanation:
Sales tax = 6% or 6/100.
assuming tax is added onto the item:
total cost function f(x) = price + tax
however, assuming the cost price = sales price - tax, then:
f(x) = sales price - tax
This is not really a business or accounting forum, its a maths forum, so you need to be clearer about business or accounting terms such as total cost, selling price, selling cost.
0.25 is 1/4 if that's what youre asking, i'm not sure,
The answer is:
110in²
Hope this Helps!.
