Answer:
15,000 or 1.5 x 10^4
Step-by-step explanation:
First you put 2.5 x 10^3 in expanded form which is 2,500. Second you put 6 x 10 in expanded form which is already in expanded form, which is 6. Lastly you multiply 2,500 times 6 to get your answer of 15,000 which you either keep the same or change to scie tific notation
Hope I could help