Answer: 16. 3 yards. 17. -13 points. 18 is cut off, so I cannot provide an answer.
Step-by-step explanation: 16. The team gained 8 yards in 1 play then lost 5 yards. You can solve this by doing 8 - 5 which is 3 yards.
17. Matt gains 7 points, then loses 10 points, 2 points, and 8 points. All in all, he lost 20 points. So you solve 7 - 20 which is negative 13 points.