Answer:
C
Step-by-step explanation:
There is no way of telling what the means are.
To find the area to the total surface area is 1/2bh
The height would be 6.9 + itself to get the height
And the base is 16 bc 8+8
So for one 3.25x5= 16.25 then 16.25x2 = 32.50. So 40 dollars will be enough
SOLUTION:
Let whole number = x
x + 2x^2 = 21
2x^2 + x - 21 = 0
2x^2 + 7x - 6x - 21 = 0
x ( 2x + 7 ) - 3 ( 2x + 7 ) = 0
( 2x + 7 ) ( x - 3 ) = 0
2x + 7 = 0
2x = - 7
x = - 7 / 2
OR
x - 3 = 0
x = 3
ANSWER:
Therefore, as 3 is a whole number while - 7 / 2 isn't a whole number, the whole number must be 3.
Hope this helps! :)
Have a lovely day! <3
