Answer:
RM = 12 cm
Step-by-step explanation:

Assuming 20 is the hypotenuse cus there is no picture:




If It's not the hypotenuse:




But I find it unlikely that 20 wasn't the hypotenuse so ignore that unless it applies.
Hope this helped. :0)
Answer:

Step-by-step explanation:
Given
4 and 5
Required
Determine the halfway
This is calculated as:


Remove bracket


That would be 7 because it is placed in front of the y
Answer:
Step-by-step explanation:
Discrete variables are those that can take only a finite number of values. This is not so for speed of an airplane. as it changes from time to time
I’m pretty sure the answer is 7u+4