Answer:
105
Step-by-step explanation:
55+50+x=180
x=75 this is the other inside angle. to find b, you need to take 75 and subtract it from 180. this is because a straight line is equal to 180 degrees
Answer:
y=-x,A
Step-by-step explanation:
When we input -5 in for x, we get 5
When we input 7 in for x, we get -7
Alright! Given that C(x) is Cost(Students) = 558, we can eliminate:
2. 558 students paid to attend the event.
5. The event generated $124 from student revenue.
Now, in order to find the cost per student we simply divide 124 on both sides:

124 cancels on the left and 558/124 is 4.5 or $4.50.
Since we just determined the cost of one student, we can eliminate 3.
To check if 124 students paid, we simply add the cost to the equation and check:
4.5(124) = 558
558 = 558 √
It checks out, so we determined that both 1 and 4 are correct.
Answer:
Quadratic
Step-by-step explanation:
This is a quadratic equation because it's in the form of y=ax^2+bx+c
If it were linear, the graph would be a straight line and wouldn't contain a second degree term
If it were exponential there would be a growth or decay factor
Answer:
The answer would be letter D. Valuable.