The line l passes through the point p = (1,-1,1) and has direction vector d = [2,3,1]. determine whether l and the plane 4x-y+5z = 0 are parallel, perpendicular, or neither.

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

How many solutions does the nonlinear system of equations graphed bellow have?

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?