Answer:
First blank = 236
Second blank = 60
Third blank = 656
Step-by-step explanation:
For first blank; n = 20
f(n) = 7(20) + 96
= 236
For second blank; f(n) = 516
⇒ 516 = 7n + 96
⇒ n = 60
For third blank; n = 80
f(n) = 7(80) + 96
= 656
