Why does 81^3/4 equal 27

Scientists are studying the temperature on a distant planet. Let y represent the temperature (in degrees Celsius). Let x represent the height above the surface (in kilometers). Suppose that x and y are related by the equation y=41-3x .

A cell phone company offers a basic monthly plan that charges $20 for the first 60 minutes and $0.05 per additional minute. If you budgeted $60 to spend on your cell phone bill for the month, how many minutes can you use? 860

Niecy has 9/14 of a cup of pears and 3/14 of a cup of mangos. She combines the fruit in one container How many cups of fruit does Niecy have in a container?

Simplify this algebraic expression. А. 2-7 В. 2-3 с. 2 + 9 D. 2+7

Richard drives from his home to work at an average speed of 50 miles per hour. Later he drives from his work to home at a speed of 60 miles per hour. What is his average speed over the two trips

Use the function below to find F (5). F (x) = 2x A. 10 B. 25 C. 32 D. 7

What is an equation to show the relationship between 7 meters and 0.007 kilometers

12:3714 what is the answer?

What is the slope and y intercept of 4x-5y=40

Brianne is three times as old as Camila. Four years from now she will be two-times as old as Camila. How old are Brianne and Camila now?