The brackets are first, then the multiplication
5/12 is the answer just do 15 and then add 15 + 21 to get 36 and then you reduce 15/36 and get 5/12
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.
Finding the difference between the two temperatures, it is found that Regina is 38.7ºC degrees colder in January than in July.
----------------------------
- The mid-afternoon temperature in January is of -12.6ºC.
- In July, it is of 26.1ºC.
- The difference of the temperatures is given by:

From the difference of 38.7ºC, there are two interpretations:
- Regina is 38.7ºC degrees colder in January than in July.
- Regina is 38.7ºC degrees warmer in July than in January.
A similar problem is given at brainly.com/question/22136310
You Just Put It Like That In The Calculator And Look At The Line But Like In The Middle In The Top And That's Going To Be The Answer..