Answer:
0.4 x 10,000 = 4,000
If you don't know how the decimals work it is like 40 becoming 4 so 4 becoming 0.4 so you need one zero to bring it back to 4 so the equation is 4 x 1,000 = 4,000 so your answer is 4,000
Hope this helps
Step-by-step explanation:
