Answer:
The answer is 42.9
Step-by-step explanation:

Answer:
460 million = 4.6 x 10^8
Step-by-step explanation:
Sorry but your screenshot is very blur. please give clear photo so that we can read question and answer it.
Missing Part:
a. A red ball is drawn
b. A white ball is drawn
Answer:
a.
b. 
Step-by-step explanation:
Given



First, we need to calculate the total



Solving (a): Probability of Red.
This is calculated by dividing number of red balls by the total
So:



Solving (a): Probability of White.
This is calculated by dividing number of white balls by the total
So:



Answer:
On the 7th day.
Step-by-step explanation:
The mold doubles, so on the 7th day, the mold would be half-there.
I used the 8th day's description to figure this out.