Which term best describes the solution of the situation represented by the system of inequalities? (Assume that x >0 and y>0)
2x+y<15
3x + y < 12
f(x, y) - 2x+ 2y
a. unbounded
b. infeasible
C. one optimal solution
d. alternate optimal solutions

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

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?