Apassword is 4 characters long and must consist of 3 letters and 1 of 10 special characters. if letters can be repeated and the special character is at the end of the password, how many possibilities are there?
a. 175,760
b. 456,976
c. 703,040
d. 1,679,616

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Someone me i need with this stuff

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?