Which statement describes a situation that can be represented by an exponential function? A)The value of a stock decreases by 5% every month.
B)customer pays a restaurant bill of $18 and leaves a 20% tip.
C)A canoe rental company charges an initial fee of $12 and an hourly rate of $8.
D)The area of a square increases by 400% when the length of each side of the square increases fro
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Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)