Look at the picture.
NOT: a vertical line passed through the two points.
YES: each element x of set X has a single element y of set Y
Answer:
f = e/2
Step-by-step explanation:
e = 2f
Switch sides.
2f = e
Divide both sides by 2.
121.50 divided by 9 is 13.50. 13.50 times 5 equals 67.50
