ANSWER ASAP, WILL MARK BRAINLIEST "Find a) domain, b) range and c) determine if it is a function and explain your reasoning."

Step-by-step explanation:

3) Domain = {1,2,3,5,7}

Range = {4,7,9,12}

It is a function because each domain has only one range

4) Domain = {0,2,3,8}

Range = {2,3,7,9}

It is not a function because 3 in Domain has two ranges 3, 9

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.

answer: your gay

step-by-step explanation:

you dont know math