Rachel can finish the job in 5 hours, while carl can finsish the same job in 8 hours. How long wi it take them to finish the job together? 50 points

What is the area of the trapezoid shown ?

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?