Pls help me 10 points

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

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

Which of these could you find on a credit report? check all that apply. previous address current employer highest level of education completed bankruptcy and a civil court case monthly income late credit card payments