Answer: 1)
a combination
b permutation
c permutation
d permutation
2)
B coz 6 and 11 is the only combination which can have 462 possibilities as they r both factors of 462
Answer:
70.925 I believe
Step-by-step explanation:
Answer:
(6y+1)(6y-1)
Step-by-step explanation:
Difference of square (You may want to search it up if you want to learn more)
Answer:
5xy
Step-by-step explanation: