The answer to your question is D. Coal.
Im sorry, but for me to answer the question, I need the full question
Answer:
float
Explanation:
item[ ] is an array of strings.
Since 0.4 is added to it, item[1] obviously has to be converted to a float before the addition can take place.
Answer:
24 customers
Explanation:
Given

--- proportion to sign up
Required
The number of customers to sign up
This is calculated as:

So, we have:

