Answer :

A(k)=2(k-1)-4
The parenthesis mean that it is subscript

the next term is 
2(180)-4=356

Answer:E(i+1)=2*(i) -4, then, for the next term: 2*(180) -4 =356 = E(256)

Step-by-step explanation:

The formula has to take the form:

E(i+1)=2*(i) -4

Then, for E= 2*(180) -4 =356 = E(356)

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