Answer:

Step-by-step explanation:
To isolate r, we're going to need to do some algebraic manipulation.

Multiply both sides by r:

Divide both sides by a:

Hope this helps!
Answer:
depends on what the price of the bicycle is and the discount percentage
Based on the calculations, the unknown number is equal to 
- Let the unknown number be x.
<h3>How to find an
unknown number:</h3>
Translate the word problem into an algebraic expression, we have;
Adding 21 to the unknown number:

Multiplying the result by 3:

84 more than two-thirds of the unknown number:

Equating the equations, we have:

Cross-multiplying, we have:

Read more on word problems here: brainly.com/question/13170908
The answers you are looking for are:
A.) 199580
B.) 114002
C.) 48042
D.) 5828
E.) 18510
Hope that helps!!
Have a wonderful day!!
The range of a data set is the greatest value minus the smallest value.
The greatest value here is 32, and the smallest value is 27: