Question

What is 7.2 times 10 to the 7th power times 14.6 x 10 to the 5th power?

Answer 1

7 x $10^{7}$  times 14.6 x$10^{5}$

Multiply 7 and 14.6 and add exponents

Final Answer 102.2 and $10^{5}$

hope that helps :)

Answer 2

7.2 x 10 x 5 x 14.6 x 10 x 5

7.2 x 100000 x 14.6 x 100000

720000 x 1460000 = 1.0512 x 10 x 12