What is the division story for 21 divided by 3

Cheese sticks that were previously priced at "5 for $1" are now "4 for $1". Find the percent increase in the price per cheese stick.

What is bigger? 2.5 feet or 32 inches?

A data set has a variance of 27 what is the standard deviation of the data set?

Use matrix algebra to show that if A is invertible and D satisfies ADequalsI , then Upper D equals Upper A Superscript negative 1. Choose the correct answer below. A.

What is 47,300 in scientific notation?

Mr. Sanchez's class sold fruit pies for $1.55 each and Mr. Kelly's class sold bottles of fruit juice for $1.40 each. Together, the classes sold 60 items and earned $88.20 for their school. Write and solve a system of equations that model the problem.

Outside temperatures over the course of a day can be modeled as a sinusoidal function. Suppose the high temperature of105°Foccurs at 5PM and the average temperature for the day is85°F. Find the temperature, to the nearest degree, at 9AM.

Solve 4x + 8y = 32 for x.

A box has a length of 15 centimeters, a width of 22 centimeters, and a height of 9 centimeters. what is the surface area of the box?

6. True or False. sec^-1 (0.5) is undefined. Explain your answer.