1. what are the first five terms of the sequence given by the formula a_n=6n+1
a. 7,13,19,25,31
b.1,7,13,19,25
c. 6,12,18,24,30
d.13,19,25,31,37
3. write an explicit definition for the sequence -3, 1, 5,
a. a_n=-3+4(n-1)
b. a_n=-3+ 4n
c. a_n= -3+(n-1)
d. a_n= -3+4(n+1)

7. what is the 12th term of the sequence 20,16,
a. -30
b. -20
c. -28
d. -24

8. find the missing term of the arithmetic sequence 20,
a.42
b.18
c.34
d. 36
10. what is the 10th term of the sequences 625,125,
a. 1/3,125
b. 1/