A gardener has 26 feet of fencing for a garden. To find the width of the rectangular garden, the gardener uses the formula P = + 2 2,  w where
P is the perimeter,  is the length, and w is the width of the rectangle. The
gardener wants to fence a garden that is 8 feet long and plans on using all
of the available fencing. How wide is the garden? Solve the equation for w,
and justify each step.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.