Solve and classify the given system of linear equations. s = 5+t
-t + s = 2

infinitely many solutions, inconsistent

O no solution; inconsistent

no solution, consistent

O infinitely many solutions; consistent

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?

Me d is also an option but i couldn't get it in the picture

Simplify the algebraic expression 8y-2(y+4)