Help please thanks show work

x = 18

Step-by-step explanation:

7x - 24 is a verticasl angle with an angle that is an...

Alternate interior angle with the combines values of 49 and 3x so they  are equal

49 + 3x = (7x -23)

72 = 4x

x = 18

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

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right