After a kickoff, the chiefs start on the dolphins 30 yard line. Then the following occurs.

Gain 10 yards
Lose 3 yards
Gain 7 yards
Gain 2 yards
On what yard did the ball end one Show how it’s 46

Starting from the Dolphins' 30-yard line, let's track the progress:

Gain 10 yards: 30 + 10 = 40
Lose 3 yards: 40 - 3 = 37
Gain 7 yards: 37 + 7 = 44
Gain 2 yards: 44 + 2 = 46

The ball ends on the 46-yard line.