Plzzz help and actually try to solve the answer

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1