Answer:
look below
Step-by-step explanation:
Answer:
Option 4 : 
Step-by-step explanation:
<u>See the attached figure:</u>
To find the vertices of the feasible region, we need to graph the constraints, then find the area included by them, then calculate the vertices which is the intersection between each two of them.
As shown, the shaded area represents the solution of the constraints
So, the vertices of the feasible region are:

The distance to the store is
.. (0.3 h)*(10 mi/h) = 3 mi
The time home is
.. (3 mi)/(30 mi/h) = 0.1 h
The average speed is the total distance divided by the total time
.. speed = (3 mi +3 mi)/(0.3 h +0.1 h) = (6 mi)/(0.4 h) = 15 mi/h
Ishaan's average speed was 15 mi/h.
The answer is 4 feet which equals to 48 inches and the remaining inches are 7 inches