Which of the following numbers is composite?

A. 11

B. 2

C. 21

D. 1

2. Given the expression f (g (k (x))), where f, g, and k are functions, what operation should be performed first? Does the order matter? Why or why not?

11/12 write fraction in 3 different ways

Can somebody give me some problems involving residuals?

Conan O'Brien hosts the Conan show and Andy Richter, his sidekick, writes for it. Conan needs 4 hours to host a good show. It takes Andy 10 hours to do the same. Conan writes one usable joke in an hour, but Andy needs 2 hours to do the same.

Carlos has 7 1/2 acres of farmland. He uses 1/3 of the acres to graze animals and 1/5 of the acres to grow vegetables. How many acres does Carlos use for grazing animals or for growing vegetables.?

What is the least common multiple of 17 and 9?

One T-shirt is sold for every 5 people who attend a concert. What is the ratio of people to T-shirts sold? The ratio of people to T-shirts sold is to .

Which of the following is an example of a proper fraction? A. Al B. C. 3/4 D. 414

A sea lion dove from the water's surface at sea level to an altitude of - 216.12 meters in 2.4 minutes. What is the average change in the sea lion's altitude per minute?

A rectangle has a length of 23 inches and a perimeter of 74 inches. what is the width of the rectangle?