Five friends plan to share the cost of a meal at a restaurant. Each friend's share is at most $13.

How much could the total meal cost?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

Find the domain of the following expression: 1/(√x)-2