Answer:
1 2 3 4
Step-by-step explanation:
Since 1 lap I every 6 minutes then 30\6 is 5 so the answer is 5 LAPS
Answer:
0
Step-by-step explanation:
7jk + 3jk = 10jk
10jk - 4jk = 6jk
6jk - 6jk = 0jk
0jk = 0
First you had subtract by ten from both sides of equation form.

Then simplify by equation.

Final answer: 
Hope this helps!
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-Charlie