What is the domain of the function f (x) = 21 - x?

Is y=11 a function and why

Determine the geometric mean of each pair of numbers. If necessary, give anwser in simplest radical form. A. 3 and 17 b. 5 and 45

A store has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

Can - 11 be a real number

What is 9r - (3r) + 12r =

What is the square root of 45*2 rounded

Your class is conducting an experiment to study geometric sequences. The class forms a line. The first person takes a whole pizza, divides it in half, keeps half, and hands the other half to the next person.

A speed reader can read 850 words per minute. An average reader can read 1/7 that speed. how many words per minute does an average reader read?

A wave with a frequency of 24Hz has a wavelength of 6 meters. At what speed will this wave travel?

A store allows customers to fill their own bags of candy. glen decides he only wants caramels and candy corn. caramels sell for $0.95 per pound, and candy corn sells for $0.79 per pound. glens bag weights 1.7 pounds and it costs $1.48.