What value is a permutation of n things taken r at a time divided by to get the combination of n things taken r at a time?

Patrice has a sister who is 5 years older than she. how old will patrice and her sister be when the product of their ages is 204

Find the median for the data set: 3,12,35,12,9,6,3,3,3,3,9,3

Whats the answerto 2y-y+7-1+3+7x 2 -4y

What is the product of 6 and 9

The steps to convert 23/4 to a decimal are shown below

Twenty polar bears live at the zoo. in four weeks, they eat 9232.8 pouns of food altogether. Assuming each bear is fed the same amount of food, how much food is used for one bear for a week

Write the converse of the conditional statement. If a shape is a rhombus, then it has four congruent sides.

The difference of two numbers is 34 and their sum is 338

Liam is setting up folding chairs for a meeting. If he arranges the chairs in 9 rows of the same length, he has 3 chairs left over. If he arranges the chairs in 7 rows of that same length, he has 15 left over. How many chairs does Liam have?

A rectangle on a coordinate plane has vertices (-1.1), R (6, 1). S (6.-8), and T (-1,-8). What are the dimensions of the rectangle? The base is 6 and the height is 9. The base is 9 and the height is 6. The base is 7 and the height is 9.