Mrs. ripley baked a pie for lunch, which she cut into 8 pieces. mrs. ripley and her friends ate 6 pieces of the pie, what percentage of the pie remained? a) 20% b) 25% c) 30% d) 60%

When the ball has traveled a distance of

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.

How many four digit even numbers can be formed from digits 1,2,3,4,5 if repetition is allowed. how can solve this using permutation formula