The length of a rectangle is four times the width. The
perimeter of the rectangle is 40 inches. What is the area of
the rectangle (in square inches)?

Step-by-step explanation:

let the width=x

length=4x

P=2(l+w)=2(4x+x)=10x

10x=40

x=40/10=4

width=4 in

length=4×4=16 in

area=16×4=64 square inches.

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844