Which of the following is a true statement about functions? O A. If A and B are matrices, then AB = BA.
O B. If fand g are functions, then (fog)(x) = (gof)(x).
O C. If fis a function, then fla+h)=f(a)+f(h).
O D. If fand g are functions, then (f+g)(x) =(g+f)(x).

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Explain why the factor 1.5 is broke. into two numbers in the model.