Answer:
C. x=14
Step-by-step explanation:
Answer:
c. 198π units²
Step-by-step explanation:
We have to find the surface area of a cylinder.
We know that surface area of a cylinder= 2πrh+2πr²
where r is the radius
and h is the height of the cylinder.
here h=2 units and r=9 units
Surface area= 2π×9×2+2π×9×9
= 198π units²
Hence, correct option is:
c. 198π units²
Original cost is $80.
Original cost is denoted by 100%
$80 represent 100%
$1 represent 100 ÷ 80 = 1.25%
Saving is $12
$12 represent 1.25 x 12 = 15%
So $12 represent 15%
the greatest common factor is 2