It is not proportional because 3 should be 45, since it is 3x15
Answer:
3/10
Step-by-step explanation:
If both halves were equal.
½ × ½ = ¼
Closest option is 3/10
She will only 4 arrangements for each bridesmaid
Answer:

Step-by-step explanation:
The rate of infection is jointly proportional to the number of infected troopers and the number of non-infected ones. It can be expressed as follows:

Rearranging and integrating

At the initial breakout (t=0) there was one trooper infected (I=1)

In two days (t=2) there were 5 troopers infected

Rearranging, we can model the number of infected troops (I) as

Answer:
a control group is not used