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 answer is the second option-always
New balance
2,103.23+(2,103.23×0.144)+390
=2,796.095
12 and -3.
-3 * 12 = -36, and
12 - 3 = 9
There's your answer!
Answer:
Sherri constructs a circular garden with a diameter of 14 m. Find the area of the circle formed by the garden to the nearest tenth. Use 3.14 for pi
Area= πr²
Radius= Diameter/2
Diameter= 14m
Radius= 14/2
radius= 7m
Area= 3.142 x 7 x 7
Area= 153.96m²
Step-by-step explanation: