If Linda wants to know how much time students spend in the library, then she needs to how much people go. That means she needs to ask the first question, "How many hours per week do you read books in the library?".
The answer is 3 because 3.75 divided by 2.5 is 1.5 , and when finding the area of a triangle you have to cut one of the sides values in half then multiply it by the other side. So 2.5 times 3 equals 7.5 and then divided by 2 is 3.75.
I think it D cause 30(cos(30x)+14=-16
Your dividing by 30
your 180 (which is degrees) is
radians. As the cosine function is periodic with period 2 we get
