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:
1+3=4
Step-by-step explanation:
why the hll do u need a paragraph on that ur in highschool, just why
Answer:
d= -2
Step-by-step explanation:
7 + 4d + 5d = 7d + 3
Combine like terms
7+9d = 7d+3
Subtract 7d from each side
7+9d-7d = 7d-7d+3
2d +7 = 3
Subtract 7 from each side
2d+7-7 = 3-7
2d = -4
Divide each side by 2
2d/2 = -4/2
d = -2