Answer:
y = 21
Step-by-step explanation:
y = | x - 9 | + 2 ( substitute x = - 10 )
= | - 10 - 9 | + 2
= | - 19 | + 2
= 19 + 2
= 21
3.4 hours
13. no solution
15. 3
16. 2
17. 5
18. -8
19. -7
20. 6
21. -5
22. -7
