1) D
2) C
3) B
4) C
Hope this helps a lot
Answer:
$64.99
Step-by-step explanation:
A total of $584.91 was spent among 9 people (Caleb + 8 friends), thus we can find the amount per person. 
I hope this helps you
f(x) =sinx
f^-1(x)=arcsinx
arcsinx is inverse of sinx function