The graph of which function is decreasing over the interval (-4, c)?
f(x) = (x + 4)2 +4
f(x) = -(x + 4)2 + 4
f(x) = (x – 4)2 - 4
f(x) = -(x – 4)2 - 4

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Sioux co. replaced the roof on its existing building, therefore increasing the building's life by 10 years. the cost of the roof is considered a(n):