Answer:
Alright solve for x by multiplying both sides of the equation then isolating the variable
x = - 10 Hope this helps :)
Step-by-step explanation:
Answer

Solution
Simplify both sides of the equation.

We are left with d = 4+
Add

Hence, d = 
Answer:
Because the line is the shortest path between 2 points
the rise over run is 15/40 so the slope of the airplanes ascent is 0.375 feet per foot is move forward