Answer:
3- 0
there's 8 rows, and 48 tiles, 48/8=6, so there's no purple tiles needed
4- 240
36 students + 4 adults = 40, 40 people times 6 full buses = 240 people in total
5- 12
72 flags divided by 6 flags in each row = 12 rows
6- 10, 24, 38
composite numbers are like the opposite of prime numbers, you can divide them by more than just themselves and 1
hope this helps :)
