Please help me. It would be greatly appreciated

11a) x=18

11b) 6x=108

11c) 4x=72

Step-by-step explanation:

11a) A line is equal to 180 degrees. Therefore, 6x and 4x have to add up to be 180.

6x+4x=180

10x=180

x=18

11b) We know what x is so we have to plug x into the expression. 6x=6(18)=108. 6x=108

11c) We know what x is so we have to plug x into the expression 4x=4(18)=72

4x=72.

If this helps please mark as brainliest

answer: 7270

step-by-step explanation:

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