Solve the system by the addition method. x + 4y = 9
4x + 5y = 3
Select the correct choice below and, if necessary, fill in the answer box within your choice.
O A. The solution is (Simplify your answer. Type an ordered pair.)
O B. There are infinitely many solutions.
O au There is no solution.

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected

Devaughn's age is three times sydney's age. the sum of their ages is . what is sydney's age?

The sum of 15 and two times a number is 29 . what is the number