The answer is D. 12
4, 3 and 2 are all factors of 12 (least common denominator)
Answer:
226 cubed foot (rounded to 3 s.f.)
Step-by-step explanation:
Volume of cyclinder: 
× r² × h
Volume of cylindrical tank = × 3² × 8
= 72
= 226 cubed foot (rounded to 3 s.f.)
If he has 9 rows of equal length there are 3 chairs left over.
If he has 7 rows of same length there are 19 left over.
It's important to note that these two setups have the same number of chairs. So we can make an equation out of it.
9x + 3 = 7x +19
2x + 3 = 19
2x = 16
x = 8
So, x (8) is the number of chairs in each row with these setups.
Plug 8 into one of the equations and you will find how many chairs total there are.
9(8) + 3 = 75
There are 75 chairs total
Ok....so look at the attached picture
