Answer:
145 degrees .....................
Answer:
m∠=6, ,m∠=+20,m∠=40+3
the larger the angle, the larger the side
Answer:
Step-by-step explanation:
For the first one, revenue - cost = profit. We have equations for revenue and profit, so filling in:

Let's add cost to both sides to make it positive and bring everything on the right over to the left and combine like terms:

For the second one:
P(x)*T(x) = 
Distribute the 3x into everything inside the parenthesis to get

For the second part of that problem, C(x)*P(x) = 
Distribute the x into everything first to get:

The distribute the -4 into everything to get:

Combine the like terms and put everything together to get
