A cone with a base of radius 21 cm has a total surface of 3696cm³ use 22/7
this is answer
A.28
B.35
C.40
D.55​

The coefficient, 5 represents the length in relation to the problem.

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.