My exam is tomorrow and i really need some help with the following questions

If possible plz explain all the steps, cuz there's no point in learning without knowing how to do

I know there are alot of question, but i really need help cuz my exam is in like 20 hours, do as many as possible thanks (All of these questions are from Grade 11 Nelson mathematics Book)

1) Tiffany is paid $ 8.05/h plus 5% of hr sales over $1000, for a 40-h work week. For example, Suppose Tiffany sold $ 1800 worth of merchandise. Then she would earn $ 8.05(40)+0.005($800) = $362

1a) Graph the relation between total pay for 40h work week and her sales for the week

1b) Write the relation in function notation

1c) Write the inverse in function notation

2) It costs a bus company $ 225 to run a minibus on a ski trip, plus $30 per passenger. The bus has seating for 22 passengers, and the company charges $60 per fare if the bus is full. For each empty seat, the company has to increase price by $ 5. How many empty seats should the bus run to maximize the profit from this trip.

3) Given that f(X)= -3x +8, determine(solved by Dan)

a) the value to x where f(X) = 14

b) the value(s) of x where f(x) = f-1 (X)

Determine the equation of g-1(Solved by Dan)

a) G(X) = 2x^2 +12x -14

b) G(X) = (root of) 4x + 8

4) A ferris wheel has a radius of 10m and completes one full revolution in 36s. the riders board the ride from a platform1m above the ground at the bottom of the wheel(Solved by Dan)

a) Determine and equation that models the position of a rider above the ground, at time, t, in seconds.

b) Determine rider's height above the ground 10 seconds after the ride starts

C) When will the rider be at max height? what is this height

6)9= 4 tan 2x 0 degree less than or equal to x less than or equal to 360 degree(Solved by Dan)

Thanks