Answer:

Step-by-step explanation:
Midpoint formula is
---------------(1)
Here

Substituting values in equation (1)


Answer:
x = 5
Step-by-step explanation:
divide both sides by 2
Answer:
18
Step-by-step explanation:
If 100% is 9 then you need to multiply by 2 to get 200% which is 18.
Answer:
D.
Step-by-step explanation:
There are 60 seconds in 1 minute, times 2 for 2 minutes, that makes 120 seconds. 120 multiplied by 20 is equal to 2400. Brainliest?