What is standard deviation

What is this? -7 (1-4m) = 13 (2m-3

A population of cheetahs decreases 40% each year. What is the decay factor b in this situation?

2 (b+5) use the distributive property to write an equivalent expression

Solve the quadratic equation by completing the square. 6x2 + 4x - 5 = 0

2x + 5 = 2x - 3 -2x - 2X 5:-3 What is the solution to this equation? infinite solutions one solution no solution none of these

Flying against the wind, an airplane travels kilometers in hours. Flying with the wind, the same plane travels kilometers in hours. What is the rate of the plane in still air and what is the rate of the wind

In the continental United States, the ratio of states that border an ocean is 7:9. How many of the states border an ocean?

The angles with measures x and 4x are complementary angles. which is the value of x?

When buying a new dress, you have a choice of 3 different lengths, 5 different colors, and 2 different styles. How many choices are there for one dress?

For number 913,256 which is the digit in the ten thousands place