Answer:
20 inches by 14 inches
Explanation:
Let's begin by reviewing what we know about rectangles.
The perimeter is equal to 2 lengths and 2 widths, giving us the equation
P = 2l + 2w
68 = 2l + 2w
The area is equal to the length multiplied by the width, giving
A = lw
280 = lw
Evaluating these equations for l and w, we are left with:
l = 20 and w = 14
Hope this helped!