Answer:
It is the first bubble.
Step-by-step explanation:
multiply the fraction 
multiply the numerators and denominators seperatly
calculate the product
multiply the numbers
solution
Answer:

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

r - radius
l - lateral height
We have the radius r = 6in and the height H = 8in.
Use the Pythagorean theorem to calculate the lateral height:

Substitute:

Answer:
Step-by-step explanation:
h(t) = t² - t + 7
h(3) = 3² - 3 + 7 = 9 - 3 + 7 = <em>13</em>