Keywords:
<em>Function, variable, total cost, percentage, jeans
</em>
For this case we have a function of the form
, where
represents the total cost of buying a pair of jeans, considering that they are 20% below the regular price given by the variable x.
So, if the pair of jeans costs x, we look for 20% of x.
x -----------> 100%
? -----------> 20%
Where "?" represents 20% of x. So, we have:

Thus, 0.2x represents the reduction of the total cost of the pair of jeans
Then, the function that gives the total cost of the pair of jeans, with a reduction of 20% is:

Answer:

Option C
0.078 rounded to the nearest hundredth is 0.08
Answer:
A diamond is only a quadrilateral and square.
Step-by-step explanation:
The quotient is 284 divided by 5, or
284
----- If you mult. numerator and denominator by 2, you get 578/10, or 57.8.
5
Try the numbers 550 and 600 (because 574 is between them). Now divide 550 and 600 by 10; the results will be 55 and 60. The actual value of 284/5 is between 55 and 60: 57.8 (which you can verify with a calculator).