7*9 = (7*10) - 7*A) what is the value of A

This is a standard deviation contest. Which of the following sets of four numbers has the smallest possible standard deviation? A. 7, 8, 9, 10 B. 5, 5, 5, 5 C. 0, 0, 10, 10 D. 0, 1, 2, 3

How do you do systems of two equations? Problem: y=-3x+4, y=3x-2

The solution to the equation (2/3) x - 4 = 6 is x = - 3

How do we represent 71 in a form of decimal?

What is 500,000-437,981 step by step

A squirrel family collected 72 nuts to store for the winter. They spread the nuts out evenly between their 6 favorite locations. Sadly, a crow stole half the nuts from one of the locations.

Michael wrote a total of 6 persuasive paragraphs over 3 hours. How many hours will Michael have to spend writing this week in order to have written a total of 16 persuasive paragraphs?

Solve for if w = 9 38-w+13

Each month for 9 months, Jordan buys 2 sports books. How many more sports books does he need to buy before has bought 25 sports books?

Round to the nearest thousands place if necessary 5/6