Answer:
160 cm²
Step-by-step explanation:
V = 1/3 * 24 * 20 = 160 cm²
Decimal=9.03 &
fraction= 9 3/100
<u>The total </u><u>labor cost</u><u> of the carpenters is $2296.91</u>
The carpenters worked 
<h3>Conversion of Fraction</h3>
Let's convert the mixed fraction to improper fraction
So, we would have
- 63/4,
- 61/4,
- 35/2,
- 25/2
- 35/2.
<h3>Working Cost</h3>
Let's sum it up and multiply by the working cost per hour

- The total labor cost is = total hours worked * hourly rate.
This becomes 
<u>The total labor cost is $2296.91</u>
Learn more about rate here;
brainly.com/question/1115815
2x + 21 = 35
hope this helps

the equation is a quadratic one, and it has a positive coefficient on the leading term, meaning, is opening upwards, so it has a "burrow" for the vertex.
the minimum or lowest point for a quadratic opening upwards is, well, the vertex point :), the "x" value is the year, the "y" or f(x) value is the population, we're asked for the year, or the x-coordinate of the vertex
well