Gary is 15 years old. let s represent sandy's age. write an algebraic expression that represents how many years older sandy is than gary?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?