Let 2x=student tickets
Let x=adult tickets
2x+x=408
3x=408
x=136
2x=272
Number of student tickets sold:272
Number of adult tickets sold:136
:
Since
, we get:

-----------------------------------------------------------------------------------

We have
simplify 
then the radical rule is used: ![\quad \sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b}](https://tex.z-dn.net/?f=%5Cquad%20%5Csqrt%5Bn%5D%7Bab%7D%3D%5Csqrt%5Bn%5D%7Ba%7D%5Csqrt%5Bn%5D%7Bb%7D)
⇒ 
Now we have
and 

-----------------------------------------------------------------------------------

and 

-----------------------------------------------------------------------------------
since
is the half of 
-----------------------------------------------------------------------------------
<em>(-4+5=1)</em>
Answer:
<h3>a1 = 63</h3><h3>an = 3(22-n) .........</h3>
Answer:
B) 65 sq in
Step-by-step explanation:
SA = area of base + 1/2(perimeter of base)(slant height)
= 5² + 1/2(20)(4)
= 25 + 40