Answer:

Step-by-step explanation:
bx-c=ax+d
<=> bx-ax=c+d
<=> (b-a)x=c+d
<=> x=(c+d)/(b-a)
Answer: Yes
Explanation: Yes because, sometimes you need to do stuff to get things of your head
Hello there! The lines between the numbers represent absolute value. In case you don't know, absolute value is the distance from 0, and it is always positive. For this, the absolute value of -6 is 6 and the absolute value of -0.4 is 0.4. 6 + 0.4 is 6.4. There. You chose the right answer choice. The answer is 6.4.
Answer:
A≈1385.44in²
Step-by-step explanation:
A=πr2=π·212≈1385.44236in²