Adults pay = $33.60
Children pay = $16.80 (it's half price but if they take a round trip it's double the price. Therefore it's $16.80) then multiply both by two and add them together.
2 ($33.60+$16.80) = $100.80
I wish you were using parentheses here. I must assume (without knowing for sure) that y ou mean
a - 3/7
----------
3 - a/21
The LCD here is 21, since 7 divides into 21 without a remainder.
Thus, multiply numerator and denominator by 21:
21a - 9
-----------
63 - a
You could leave this result as is, or you could factor out 3:
7a-3
3 ---------
63-a
It is the first one I believe
Answer:
25 friends
Step-by-step explanation:
85 - 10 = 75
75/3 = 25
Answer check:
25*3 = 75
75 + 10 = 85
DeShawn has 25 friends. (Wow, DeShawn must be popular)
Answer:
I do 1 option for you as an example, you need to check the leftover by yourself.
Step-by-step explanation:
for d) y(0) = 0 and y'(pi) =0



Replace
we have
if and only if 
Hence the given solution does not work.
then, d is NOT the correct answer.