Xcan do a job in 16 days and y can do the same jovb in 20 days x y and z can do the job in 7.5 days. alone z can do the same job in

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj:

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?