<span>Which trinomial is a perfect square trinomial?
A) a^2 - 12a + 36
B) a^2 - 8a + 64
C) a^2 - 6a + 36
D) a^2 - 4a + 64</span>
Step-by-step explanation below
1 Acre = 43560 square feet
1 Ton = 2000 pounds
320 Acres = 320 * 43560 square feet = 13939200 = <span>1393.92 * 10,000
</span>1393.92 *40 pounds needed = 55756.8
55756.8 / 2000= <span>27.8784 </span>
The linear relationship should be
AGE
16 ,17 ,18 ,19 ,20
162,171,180,189,198
WEIGHT
His weight should be going up 9 pounds per birthday
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>
