Answer: The answer is 
Step-by-step explanation: Given that the penguin nursery is open two times in a day, where the number of hours open at the noon and afternoon are respectively given by

Therefore, the total number of hours 't' penguin nursery open every day is given by

Thus, the answer is

Answer:
Kayla is correct; the center is a fixed point in the middle of the sphere.
Step-by-step explanation:
Kayla is correct. Raymond is wrong because a point cannot be a radius: a radius is a line segment from the center to the surface.
The center is the fixed point in the middle of the sphere.
Answer:
$30
Step-by-step explanation:
Just multiply
I think that answer would be C
Answer:
1/12
Step-by-step explanation:
The probability of landing heads is 1/2, the probability of rolling a 3 is 1/6. Multiply them to get the answer.
Hope this helped!