Answer:
35
Step-by-step explanation:
by adding three to the next number each time, the answer is 35
1 = 21/100
2 = 1/20
3 = 7/50
4 = 13/10 or 1 3/10
5 = 1/8
3rd term: 24
10th term: 220
<em>For the 3rd term</em>
2*3 + 2*(3^2) = 6 + 2*9 = 6 + 18 = 24
<em>For the 10th term</em>
2*10 + 2*(10^2) = 20 + 2*100 = 20 + 200 = 220
