Solve the system of equations by susituition. What is the solutions for x? 2x + y = 1
4x + 2y = -1

A: x = 0
B: x = 2
C: There is no x value, as there is no solution.
D: x can be any value, as there is an infinite number of solutions.

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.

Which number produces an irrational number multiplied by 1/3