The answer to the equation is 18 which is a composite whole number. the answer is C
Answer:

Step-by-step explanation:
The formula of a lateral area of a cone:

r - radius
l - slant height
The formula of a surface area of a cone:

We have r= 9mm and l = 17mm. Substitute:


Answer:
x = 15.857143 (round this if you want)
Step-by-step explanation:
Total perimeter = 96
Values given = x, 6x-15
so:
x+6x-15 = 96
Using an unmentioned calculator, i get that x = 111/7 or 15.857143
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