Answer:

Step-by-step explanation:
step 1
Find the area of the square-shaped bedroom

step 2
calculate the total spend
Multiply the area of the bedroom by 
so

Answer: 4311/9900 = 0.4354 4936/990 = 4.985 530/900 = 0.58 674/990 = 0.680 8099/990 = 8.180 explanation: divide the numbers and select the answers.
The practical rule would be, times that number, by the result of the first time you multiplied the first number. But, it would all depend by how much your're raising the number by.
<u>
For example:</u>

We do,

But, once again, this was an example. This would show and illustrate the rule of "raising a power".<span />
So,
If you mean "speed per hour," then we just have to double the numerator of the fraction.
4 * 2 = 8
The object's speed is 8/5 miles per hour or 1.6 mph.