Answer:
The speed of sound is 
Step-by-step explanation:
Let
x-----> the speed of sound
we know that

so

solve for x

Answer: 
Step-by-step explanation:
To find the slope, you want to use the formula
.

Now we know the slope is
.
Answer:
3. 107,5
4. R = 44
RM = 35 (isosceles triangle)