22. The Drama Club is holding a car wash to raise money. The club spent \( \$ 90 \) on materials and supplies. The club earn \( \$ 11.25 \) for each car they wash. Write the inverse of the function that shows how much money the club earns per cars washed.
\( f ^ { - 1 } ( x ) = \)
= 90/(11.25-x)
Find the inverse for each of the following functions.
\(f ( x ) = 3 x + 1\)
\(g ( x ) = 1 x ^ { 3 } - 5\)
\(h ( x ) = \frac { 3 } { x + 5 }\)
\(j ( x ) = \sqrt[ 3 ] { x + 1 }\)
The total revenue from the sale of a popular book is approximated by the rational function \( R ( x ) = \frac { 1700 x ^ { 2 } } { x ^ { 2 } + 4 } \) , where \( x \) is the number of years since publication and \( R ( x ) \)
is the total revenue in millions of dollars.
(a) Find the total revenue at the end of the first year.
(b) Find the total revenue at the end of the second year.
