What property in math does 20-20=0 go on? This is my sisters homework question ...

Blake looks at his checking account balance regularly. His three lowest balance during the year are as given.

A city has a population of 300,000 people. suppose that each year the population grows by 5%. what will the population be after 9 years?

The number of counties in state a and the number of counties in state b are consecutive even integers whose sum is 122. if state a has more counties than state b, how many counties does each state have?

How many states are possible for a given set of quantum numbers? For instance, n=1 means that l=0 with ml=0 are the only possible values for those variables. Thus, there are two possible states: (1, 0, 0, 1/2) and (1, 0, 0, - 1/2).

Which of the following expressions describes the solution set m ≥ - 3? A. All real numbers that are negative three or greater. B. All real numbers that are greater than negative three. C. All real numbers that are negative three or less. D.

If each person drinks 8 ounces of cranberry juice how much cranberry juice is needed there is 15 people

Which situation would be represented by zero? a $3 loss and a $4 profit a $3 loss a $4 loss and a $4 profit a $4 profit

Amanda drove her car 81 km and use 9 L of fuel. She wants to know how many kilometers she can drive on 22 L of fuel. She assumes her car will continue consuming for you at the same rate. How far can a man to drive on 22 L of fuel?

Simplify (5x) (x^5 - 12x)

Find the LCM of 6 and 12