You want to send a package . First class mail costs $.39 for the first ounce and $.24 for each additional ounce . You can spend at most $ 3.00 on postage . What is the maximum weight of your package ? Round down to the nearest ounce .

10 ounces

Step-by-step explanation: Ounce is equal to O and price is y

y=mx+b : y=.24o+.39

y = 3.00

3.00-.39=2.61

2.61/.24 = 10.875

round it down and you get the maximum

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.