Me what are the different ways you can solve a system of linear equations in two variables? what is the process for solving a system using each method?

What is x and y (use substitution? ) 5x+3y=38 and y=3x+8?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?