Addition means adding for exanple
3+3=6
To find the area of a parallelogram, you use the area formula:
Area = Base * Height
Then, all you have to do is substitute in your known integers and solve. Therefore:
Area = 15 * 21 2/3
When we multiply these two numbers, we get
Area = 325 square yards or yards
0.583 (the 3 is repeating)
We first recall the formula for the volume of a rectangular box:

where l is its length, w is the width, and h is the height.
According to the problem, the height is 3 inches less than the width therefore we can replace h with the term

. Additionally, the length of the box is 2 inches more than twice the width therefore the length can also be replaced with

.
We can notice that the equation will just have one unknown variable because we already know the volume of the box. We can then solve for this variable (w):




Solving the cubic equation we'll get

and two complex number solutions. We'll just need to solve for the length and height using the value of the width:

ANSWER: The width of the box is 10 inches; its length is 22 inches, and its height is 7 inches.
Mean = 74.4
Median = 83.5
Mode = 93