The length of a rectangular deck is three times it's width. If the deck's perimeter is 32 ft, what is the decks area?

the length is 12 and the width is 4, therefore the area is 48ft²

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb