Atown had about 2120 acres of pine tress 40 years ago. only about 13% of the pine tress remain. how many acres of pine tress remain?

Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? select two of the following that apply.

During each minute of a comedy show, carlin laughs 55 times. carlin watches 33 comedy shows every day, and each show is 40 minutes long. how many times does carlin laugh every day due to the comedy shows?

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4