A(4) in the sequence 3,5,7,...

9

Step-by-step explanation:

Because each new term is obtained by adding 2 to the previous term, we identify this as an arithmetic sequence.  The first term. a(1). is 3 and the common difference (d) is 2.  

The general formula for an arithmetic sequence is a(n) = a(1) + d(n -1)

Here the specific formula is a(n) = 3 + 2(n - 1)

and the fourth term, a(4), is 3 + 2(4 - 1), or 3 + 6, or 9

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a