Answer:
wow a lot 45
Step-by-step explanation:
Tommy walks 28 blocks
(0, 0) to (0, 5) = 5 blocks
(0, 5) to (9, 5) = 9 blocks
(9, 5) to (9, 0) = 5 blocks
(9, 0) to (0, 0) = 9 blocks
5 + 9 + 5 + 9 = 28 blocks
:) hope this helps