Answer:
24
Step-by-step explanation:
30 secs = 0.5 min
thus 84 / 3.5 min = 168 / 7 = 24
For this case we have the following subtraction:

We can rewrite the subtraction in an easier way.
We have then:

Then, by doing associative property we have:

Answer:
The value of the subtraction is given by:

Answer:
X=5
X=2
Step-by-step explanation:
Answer: The answer is the first one, angle JLK
Step-by-step explanation:
The sample of the group would be the 22,000 participants.