It would be B because you have to change the signs to opposite like negative or positive
Well if the original population is 250 crickets after 6 months it would double to 500. After another 6 months (A year now) it would again double in size to 1000 and so on for 2 more periods of 6 months. After doubling two more times you get 4000, or answer D.

x=(5*21)/7=15 taken spaces
total =empty spaces+taken spaces= 21+15=
36
Equation is given as;
y = (g/k) yo
To find the value of “k”, divide both sides of the
equation with yo;
y/yo = (g/k)yo/yo
it implies that;
y/yo = (g/k)
Now following steps will obtain the value of “k” as;
ky/yo = g
ky = gyo
<span>k = gy0/y </span>
24.50 would be the answer for the question you are asking.