The diameter is given which is 13.5feet and radius is half of diameter. Therefore radius = 6.75 feet.
Slant height = 16.8 feet
The formula of surface area of cone is

Correct option is C
C: Bc 3 * c = 3c (plus 7 more) = 7+3c
1. $1.23 per pair
A dozen is 12 so you do 12x7=84
Then you do 103.32 divided by 84 which gives you 1.23
2. His error was doing 103.32 divided by 7 because he thought it was only 7 pairs but it’s 7 dozen.
Answer:
B
Step-by-step explanation:
If you mark up 584 by 25%, you get 730. Therefore, the price of the refrigerator after the markup is $730.