How many liters (L) of a 40% alcohol solution must be mixed with 60 L of a 60% solution to get a 50% solution

What is coefficient of the term of degree of degree 5 in the polynomial below

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.