Help. Solve the following and show your work! Ryan can create slides for a presentation in 8 hours. Betty can create the same amount of slides in 10 hours. If they work together, how long will it take for them to finish ?

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

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