How many liters of a 10% alcohol solution must be mixed with 40 liters of a 50% alcohol solution to obtain a 40% alcohol solution?

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.