4. Suppose you have just enough money, in coins, to pay for a loaf of bread priced at $2.10. You have 12 coins, all quarters and dimes. Write and solve a system of equations. How
many quarters do you have? How many dimes do you have?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.