What's the square root of 550 simplified, show work. this is worst 25 points and brainliest answer for whoever explains it properly.

Nine more than four times a number is the same as one less than twice the number. find the number?

How many terms does the polynomial x^2 y^2 have

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