Since multiplication can be done in any order, we can rewrite this as (3 × 5)(10^{4} × 10^{2}). It makes our lives easier that multiplication has the versatility of Tom Hanks. We can then simplify to 15 × 10^{6}, which in scientific notation is 1.5 × 10^{7}. Houston, we *don't* have a problem. Aw yeah. | |