The equation is 
The solved equation is 11
First, we must add 13 on both sides

The answer to the equation is 
Answer:
The surface area of a cylinder is the sum of the areas of the two bases and the area of the lateral surface. If the height of the cylinder is doubled, the area of the lateral surface is doubled, but the areas of the bases remain the same.
Step-by-step explanation:
Answer:yes
Step-by-step explanation:
Answer: <em>The answer is </em><u><em>9-pack of toaster pastries for $7.56</em></u>
Step-by-step explanation:
<em>Basicly it would be more expensive if you bought 9 for the first option but less for the other.</em>
Step-by-step explanation:
1st digit is 1 number (1)
2nd digit is (3,4,5) so it's 3 numbers
third digit is (6,7,8,9) is it's 4 numbers
last 7 digits is 10 (0,1,2,3,4,5,6,7,8,9)
multiply
1*3*4*10=120
so answer is 120 phone numbers