Mai and Andre found an old, brass bottle that contained a magical genie. They freed the genie, and it offered them each a magical $1 coin as thanks. The magic coin turned into 2 coins on the first day.
The 2 coins turned into 4 coins on the second day.
The 4 coins turned into 8 coins, on the third day.
This doubling pattern continued for 28 days.
The number of coins Mai had on the 28th day is very, very large. Write an expression to represent this number without computing its value.

360 different combinations

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

goog may be able to you find that answer

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this