The number half way between 13 and 37 is 25
Answer:
Step-by-step explanation:
This could help
https://www.mathsisfun.com/algebra/inequality-solving.html
Answer:
Part a) The elevation of the road is 
Part b) The rise is 
Step-by-step explanation:
Part a) What is the elevation of the road to the nearest degree?
Let
y-----> the rise of the road ( vertical distance)
x ----> the run of the road (horizontal distance)
we have
y/x=1/10
we know that
The ratio y/x is equal to the tangent of the angle of the elevation of the road
Let
----> angle of the elevation of the road



Part b) If the road is two km long, how much does it rise?
using proportion


Y = -9x - 10
The dolphin is diving 9 feet per second so the rate of change is -9.
It's also 10 feet below sea level which makes the y-intercept -10
Hope this helped!