2y + 2x = 6
2y - x = 12
Subtract
3x = -6, x = -2
2(-2) + 2y = 6
-4 + 2y = 6
2y = 10, y = 5
Final solution: x = -2, y = 5
Answer:
The population will be double in 0.5 years.
Step-by-step explanation:
The population growth of a community is modeled by the equation
, where P (x) is population and x is time in years beginning with x = 0.
Therefore, the population at x = 0 will be = 
If the population becomes double then we can write the equation as

⇒ 
⇒ 
⇒ 2(x + 1) = 3 {Comparing the power terms}
⇒ x + 1 = 1.5
⇒ x = 0.5 years.
Therefore, the population will be double in 0.5 years. (Answer)
B. the answer is b!!!!!!!!!
14.14 inches
Convert 135° into radians. 135*2pi/360=3pi/4.
6*3pi/4=18pi/4=9pi/2=14.14
Another viable method is to do 2pi*6*135/360=14.14