The sides of the rectangle are:
xy = 39
2x + 2y
Solve by simultaneous equation:
ysquared -17y + 30 = 0
Solution:
The sides are equal to 15 and 2
Answer:
Put 4 in the place of x then you'll get

42,600 - 25,800 = 16800. That is the increase in 15 years.
You then calculate the increase as a percentage of the original population; 25,800.
16,800 / 25,800 * 100 = 65.11%
Answer:
the second one
Step-by-step explanation:
cant be negative cuz if its negative the first line doesnt apply.