To find the lateral surface area, use the following formula
la = π × r × s
Given:
π = 3.14
r = 7 ft
s = 13 ft
Solution
Input the numbers to the formula
la = π × r × s
la = 3.14 × 7 × 13
la = 285.74
The lateral surface area of the cone is 285.74 square feet
3x+9+6+2x=180
3x+2x+9+6=180
5x+15=180
5x=180-15
5x=165
x=33
Answer: i'm not really sure how to answer this one but i think you're wanting an answer to something. the equation for it would be 5 + 5x meaning the 5 is already there, and x is for the minutes that are they filling it up. so if the question asks how much after 5 minutes, you simply just put the 5 in place for the x.