Answer:
300%.
Step-by-step explanation:
Suppose the population is 100, then it rises to 300 after one hour.
So the requires percent is (300/100) * 100
= 300%.
I think the answer might be c
The answer is 8 9/10
hope this helps
step 1: x+50+4x=90
the angle of a right-angled triangle is 90 degrees, therefore if we add everything together ,we could work out what x is.
step 2: x+50+4x=90
x+4x=50
5x=50
x=10
then you solve the equation, x is 10
