Answer:
Li Jing's formula i.e.
is right.
Step-by-step explanation:
Considering the sequence

A geometric sequence has a constant ratio r and is defined by





So, the sequence is geometric.
as



so



Therefore, Li Jing's formula i.e.
is right.
B is your answer bc 2 times 4 is 8 plus 2 minus 6 is
Use a tool called a protractor
Answer:b
Step-by-step explanation: