So because it says NOT a way....I think it's A...Maybe I'm wrong but whatever.
Answer:
1,200
Step-by-step explanation:
So first we need to find the perimeter

so it costs 10 per meter
-4x + 2x = -2x
6 + 5 = 11
Therefore, 11 - 2x = 0
11 = 2x
x = 11/2 = 5.5
Answer:
B
Step-by-step explanation: B is the only reasonable answer
Create formulas!
x=number of adult tickets
y=number of student tickets
x+y=644 <em>total sold</em>
56+y=x <em>student was 56 less than adult</em>
Perform substitution
(56+y)+y=644
56+2y=644
2y=588
y=294
Substitute y into the formula we created
x+294=644
x=350
350 adult tickets were sold.