we have
---------> equation 
---------> equation 
<u>In the equation
clear variable x</u>

----------> equation 
Substitute the equation
in the equation 
![800*[22.432 -0.012y]+4y=9344](https://tex.z-dn.net/?f=800%2A%5B22.432%20-0.012y%5D%2B4y%3D9344)
![800*[22.432 -0.012y]+4y=9,344\\17,945.6- 9.6y+4y=9,344\\9.6y-4y= 17,945.6-9,344\\ 5.6y=8,601.6\\y=8,601.6/5.6\\y= 1,536](https://tex.z-dn.net/?f=800%2A%5B22.432%20-0.012y%5D%2B4y%3D9%2C344%5C%5C17%2C945.6-%209.6y%2B4y%3D9%2C344%5C%5C9.6y-4y%3D%2017%2C945.6-9%2C344%5C%5C%205.6y%3D8%2C601.6%5C%5Cy%3D8%2C601.6%2F5.6%5C%5Cy%3D%201%2C536)
<u>Find the value of x</u>



therefore
<u>the answer is</u>

Answer:
<em>Unit rate is 54 words per minute</em>
Step-by-step explanation:
297 / 5.5
297 ÷ 5.5 = 54
Total surface area = lateral area of cone + lateral area of cylinder + area of base of cylinder:
cone: πrL = π(5cm)(13cm) = 65πcm²
cylinder: 2πrh = 2π(5cm)(12cm) = 120πcm²
base: πr² = π(5cm)² = 25πcm²
total surface area = 65πcm² + 120πcm² + 25πcm² = 210πcm²
Original number 21.4709
Rounded to the nearest hundredth 21.471