21. you are making a rectangular poster to advertise a school fundraiser. you
want the poster to be twice as long as it is wide. let w represent the width
(in meters) of the poster.
a. write and simplify an expression in terms of w for the perimeter of
the poster
b. write and simplify an expression in terms of w for the area of the poster.
c. complete the table.
width (meters)
perimeter (meters)
area (square meters)
?
?
?
?
| 3
?
?
| 4
?
?
d. which width given in the table allows for the most area while not
exceeding a perimeter of 20 meters?