first you need to multiply it
Answer:
The answer is also 3.14 when you round it up
A=259.8 cm^2 is the correct answer
After 6 days equation would be and answer

to represent before 6 days just put 4^5=1024
42 out of 50 is the probability of selecting a item that is not defective or if you need that in percent form it is 84% and in decimal form it is 0.84