Step-by-step explanation:
Divide 140 by
to represent the amount of hours he worked.
To make dividing easier,
can also represent 2.8 as a decimal.

He has worked 50 hours after completing 140 rows of grapes.
If B is the midpoint of AC, that means that the distances from A to B and B to C are the same. The distance from A to B is 8x + 4, and the distance from B to C is 10x - 6, so we can set these two equivalent:
8x + 4 = 10x - 6
Solving for x:
4 = 2x - 6 (subtract 8x from both sides)
10 = 2x (add 6 to both sides)
5 = x (divide both sides by 2)
So, x = 5, which is the second option given.
Answer:
the answer is 42. just took the apex test.!!!!!
Step-by-step explanation: