Let ƒ(x) = x2 + 2x and g(x) = 2x. Evaluate the composition (ƒ ∘ g)(2). Question 3 options:

A)

(ƒ ∘ g)(2) = 32

B)

(ƒ ∘ g)(2) = 16

C)

(ƒ ∘ g)(2) = 24

D)

(ƒ ∘ g)(2) = 48
Question 4 (5 points)
Simplify: 4 – + 4 + 3
Question 4 options:

A)

11 + 6

B)

3 + 7

C)

7 + 4 + 6

D)

18 + 4 my

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?