Answer:
6
Step-by-step explanation:
Since you're familiar with your multiplication tables, you know that ...
42 = 6 × 7
There are 6 tiles in each of the 7 rows.
Answer:
36
Step-by-step explanation:
1 + 3 + 5 + 7 = 16
3 + 5 + 7 + 11= 26
These consecutive positive prime numbers above have sums that are not divisible by three.
5 + 7 + 11 + 13 = 36
This consecutive positive prime numbers above has a sum that is divisible by three: 36.
36 : 3 = 12
Answer:
4 miles per hour
Step-by-step explanation: