Joe and Bill were competing against each other to see who could collect the most bottle caps. If Joe averaged 320 and Bill averaged 340, what did each one collect in December if they collected the following amounts in the previous months.

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.

345

step-by-step explanation:

(23*2)-12=x     x=34

step-by-step explanation: