Factor the polynomial completely. x2 - 3x + 1 a) (x + 1)(x + 1) b) (x - 1)(x - 1) c) (x - 3)(x + 1) d) cannot be factored

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 a.(0,11) ,-1,2) c.(1,1,-2) d.(2,-1,-1)

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Determine if the equation defines y as a function of x: 2xy = 1. yes o no