Answer:
Step-by-step explanation:
the 2nd one
Answer:
The minimum value of C is 20
Step-by-step explanation:
we have
----> constraint 1
----> constraint 2
----> constraint 3
----> constraint 4
using a graphing tool
The solution is the shaded area
see the attached figure
To find the minimum value of C evaluate the vertices (9,2) and (12,0) of the solution area in the objective function 
so
For x=9, y=2 ---> 
For x=12, y=0 ---> 
therefore
The minimum value of C is 20
6.78*10^3 (10 to the third power)
Answer:
m <PRQ is 15 degrees.
Step-by-step explanation: