Answer:
Step-by-step explanation:
Given
Solution
<u>The difference in distance covered:</u>
80
The question implies that you're counting by tens & the number comes after 70 and before 90. This is the only number that fits this description.
7
7 goes into each group
21÷7=3
14÷7=2
35÷7=5
you have to divide 6 by 15 to get you're answer A)0.4
Answer: 13
