Sami made 27 phone calls in 12 days
Work out the mean number of calls per day

Solve the system by the elimination method. 2x + y - 4 = 0 2x - y - 4 = 0 when you eliminate y, what is the resulting equation? a. x = 0 b.4x = -8 c.4x = 8

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)