A bag contains white marbles and red marbles, 20 in total. The number of white marbles is 4 less than 2 times the number of red marbles. How many white marbles are there? PLEASE HELP!!!

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

yes

step-by-step explanation: