Question

Evaluate WITHOUT a calculator. Answer in scientific notation.
(3•10^9) (5•10^6)​

Answer 1

15*10^15

Explanation:

5*10^6= 5*1,000,000

5*1,000,000=5,000,000

3*10^9=3*1,000,000,000=3,000,000,000

5,000,000*3,000,000,000=15,000,000,000,000,000

15*10^15=15,000,000,000,000,000

Hope this helps