Answer:
12
Step-by-step explanation:
Estimation:
3 1/3 --> 3
4 1/8 --> 4
3 x 4 ~ 12
Hope that helps!
The answer would be 13 3/4
They will deliver on the same day again 21 days later
Multiples of 3 and 7
3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
7: 7, 14, 21, 28, 35, 42, 49
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