Answer:
r = 
Step-by-step explanation:
The common ratio r is calculated as
r =
=
=
= 
Answer:5.83k
Step-by-step explanation:
annual means divide current by 6
Answer:
12:15 (simplified: 4:5)
12/15 (simplified: 4/5)
12 to 15 (simplified: 4 to 5)
Hope this helped!
Answer:

Step-by-step explanation:
Given



See attachment for complete question
Required

The question requires that we calculate the theoretical probability of landing on the head.
This means that, we have to ignore the given data, and we use the following
--- sample space
--- sample size
--- occurrence of Head
So, the theoretical probability is:



Part A: 3x + 15 = 5x - 25
Part B: x = 20