Supplementary angles add up to 180 degrees. to find one just subtract.
180- 42= 138
Answer: 
Step-by-step explanation:
Given
The unit cost is given by

find the derivative of the unit cost and equate it to zero to obtain the minimum value

Substitute 140 for
in the cost function, we get
![C(140)=0.6[140]^2-168(140)+30,389\\C(140)=11,760-23,520+30,389\\C(140)=\$18,629](https://tex.z-dn.net/?f=C%28140%29%3D0.6%5B140%5D%5E2-168%28140%29%2B30%2C389%5C%5CC%28140%29%3D11%2C760-23%2C520%2B30%2C389%5C%5CC%28140%29%3D%5C%2418%2C629)
If they started with 100 and 27 remained, then (100 - 27) = 73 were taken.
ratio of milk cartons taken to total milk cartons = 73/100 or 73:100 or 73 to 100
Answer:
the answer is 120
Step-by-step explanation: