Answer:
2 hours and 15 minutes
Step-by-step explanation:
Answer: 81
Step-by-step explanation: 9 times 9 = 81
Answer:
?=7
Step-by-step explanation:
Here is a cool trick that I believe only works with 9.
Add the numbers, 3+9+9+8+x= divisible by 9.
3+9+9+7+8 is 36 which is the only number divisible by 9.
