The selling price, s, of an item is s = c + mc, where c is the cost of the item and m is the percent markup based on cost. what is the formula solved for m?

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.