Answer:
0
Step-by-step explanation:
anything times 0 is 0
To solve this, you would divide the miles by the number of hours, 21 / 4
21 divided by 4 equals 5.25
<span>0.4 is 10 times as much as ? for answering this, we put x an unknown number such that 0.4 is 10 times as much as x, so it does mean 0.4 =10x, so for finding the value of x, we divids 0.4 by 10, x= 0.4/10=0.04. the answer is 0.4 is 10 times as much as 0.04Hope this helps. Let me know if you need additional help!</span>