Why does nCn equal 1

65 are drawing for a prize what is the probability for one person to win the prize

A teacher has a 2 gallon container of juice she gives each student a half a cup of juice which equation represents the amount of juice that remains why after ex students are served

Tom earns $40 a week mowing lawns. He spends one eighth of his earnings on lunch and three fourths of his earnings on music. He saves the rest. How many dollars does Tom save? Tell how you found the answer.

You set a goal to save at least 1,100 over a six week period. You are trying to decide between two plans.

What does 192/11 reduce to

The sum of two consecutive numbers is - 49 what are they

Yummy Cookies just opened a brand new cookie bakery, ans sales are increasing every month! In January, the baker made 14 carrot cake cookies. In February, the baker doubled the January order, took 5 cookies home to his family, and sold the rest.

What is the value of the expression 2 1/2 x + 3 2/3 y (if x = 4 and y = 2)

The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). the sample statistics from one experiment include 480 480 peas with 127 127 of them having yellow pods. find the value of the test statistic.

90% of students at a university use a backpack, while the rest do not. Of all the students, 50% carry their laptops with them and 5% carry neither a backpack nor laptop. What percentage of students carry their laptops and use a backpack?