Scientific notation word equation

Question

Approximately 4x10^3 employees of a certain company average $30000 each year in salary. Write the total amount earned by all of the employees of this company in scientific notation.

Answer 1

30,000 = 3 x 10⁴

 

(4 x 10³)(3 x 10⁴) = 4(3) x 10³⁺⁴ = 12 x 10⁷ = 1.2 x 10⁸