In how many ways can 7 cars be parked if there are 10 available parking spaces? Given: n=10 r=
From: P(n, r)= n! / (n, r)! then,

P(10,___)= 10! / (10-)!
P(10,___)=

pasagot po sa mga may blank plsss :(

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?