Answer:
The question
after change the mixed number to improper & using KCF will become : 
Option B is correct option.
Step-by-step explanation:
We need to change the mixed number to improper & use KCF to rewrite the question.
The expression is: 
First converting mixed fraction into improper fraction
Multiply whole number with the denominator i,e (3*2=6) now add the numerator i.e (6+1) = 7/2
Solving:

Using KCF
KCF stands fro Keep it, Change it, Flip it.
It is used when division sign is converted to multiplication the term (1/3) is reversed to (3/1)
So, our expression will be

So, The question
after change the mixed number to improper & using KCF will become : 
Option B is correct option.
The answer is 73 because 8 is more than 5 so it rounds up to be 73
Answer:

Step-by-step explanation:
Please see the attached image
I'm assuming you've already learned the special properties of a 30-60-90 triangle.
By drawing a 30-60-90 triangle by constructing line BC, and using the special proportions that come from it, we can find that
AB=AC/2=36/2=18
and
BC=AB*
=
First you need to make a multiplier for 100-2.1%, to do this you minus the values and divide it by 100:
100-2.1 = 97.9
97.9/100 = 0.979
Then you multiply all the questions by it:
$45 * 0.979 = $44.055
$765 * 0.979 = $748.935
$1300 * 0.979 = $1272.7
Hope this helps! :)
Answer:
B
Step-by-step explanation:bc it did it\