Answer:
If only in week 10 then 21, if in total then 120
Step-by-step explanation:
3+2 = 5 in the second
5+2 = 7 in the third
7+2 = 9 in the fourth
9+2 = 11 in the fifth
11+2 = 13 in the sixth
13+2 = 15 in the seventh
15+2 = 17 in the eighth
17+2 = 19 in the ninth
19+2 = 21 in the tenth
