Answer:
94.2
Step-by-step explanation:
circumference is d(pi)
20(3.14) = 94.2
Answer:
Width is 12 inches and height is 4 inches.
Step-by-step explanation:
Let the width of the piece of cardboard be = w inches
Then length is =
inches
As given, 4 inch squares are cut from each corner;
So, the width is =
inches
Length is =
inches
When we are folding the cut portion, that gives the height as = 4 inches
The volume is given by : length x width x height
And volume is given as 256 cubic inches
So, 
=> 
=> 
=> 
or 
=> 
=> 
We get ,
; w = -8(neglect the negative value)
; w = 12 inches
And length =
inches
Hence, dimensions are : L = 24 inches ; w = 12 inches and h = 4 inches
We can check by putting these values in equation : 

=> 
=> 
D. The greatest a can be is 9 and the greatest b can be is 4. a+b= 13 which is less than 20
The answer is A.<span>–11y – 3x</span>
80/5=16 cookies need 1 cup of flour
144/16= 9 cups to make 144 cookies