I think that x^2-9 (difference of 2 squares), 216x^3 +729 (sum of 2 cubes), and the other two are none
Not entirely sure
3/5 is the probability that he will win, you must find a fraction which adds to make 100%.
2/5 would be the fraction for his probability to lose.
0.4 or 40%.
38 rounded is 40 and 23 rounded is 20 add
60
4*7=28
5y=28
divide 5 to 28
y=5.6
6 because if you multiply (3/5)2 you get 6
