Answer:

Step-by-step explanation:
The first step is to find the slant height of the cone. Using the pythagorean theorem, you can find that
cm. Plugging this into the equation, you get
. Hope this helps!
C2+ 10
Twice = multiply by two
10 more than = add ten
Hope this helps!
Answer:
$9.30
Step-by-step explanation:
shipping and handling cost = percentage of shipping and handling x price
30% x $31
0.3 x $31 = $9.30