4. Calculate the product of 8/15, 645, and 1/3.
A. 48/15
B. 48/30
C. 16/75
D. 18/15

645.866 or 646

Step-by-step explanation:

645.866 is the sum of 8/15+ 645/1 +1/3

1/3 = 0.333 + 8/15 = 0.533 = 0.866

645+ 0.866= 645.866

If we are asked to round these to units

we have 646

If 30 people is three fifths of the club, then you can divide 30 by 3 to find out how many people make up one fifth of the club. So, 10 people make up one fifth of the club.

30 + 20 (which is two more fifths of the club) = 50 people (the entire club)