Answer:

Step-by-step explanation:
I used this equation formula and just input the numbers given:

Where
P= final population
= original population
r = rate of growth
t = time
Hope this helps!
Answer: 1/2
Step-by-step explanation: y = (1/2)x has the format y = kx, where k is the const. of prop. In this particular case that const. of prop. is (1/2).
Answer:
y = 2x² + 16x + 11
I hope im right... If not reaaally sorry!!
287/2 is 143.5 This is a picture of how it's solved