You can set up a proportion that looks like 3/7 = x/21. X being the number that you are trying to find. Seven goes into 21 three times. So multiply 3 also by that 3 to get 9. So three sevenths of twenty-one is 9.
Answer:
1.58
Step-by-step explanation:
The answer should be 1.58 because 12.64 divided by 8 is 1.58
Step-by-step explanation:
I believe that the manatee can swim 5 miles per hour
