pls answer soon, this is due today

The yearly profits of a company are $25,000. The profits have been decreasing by 6% per year.

Write an exponential decay function to represent this situation.

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.