Answer:
c
Step-by-step explanation:
O 30, 36, 42
6 = 1 × 6, 12 = 2 × 6, 18 = 3 × 6, 24 = 4 × 6, ? = 5 × 6 = <u>30</u>, ? = 6 × 6 = <u>36</u>, ? = 7 × 6 = <u>42</u>
20000+600+7
Sorry dont know