Parker conducted a random survey at the mall to determine the number of songs in each genre that were downloaded by 40 students. The results are shown in the bar graph. What percent of students downloaded rap music?

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it

answer: it is 8

step-by-step explanation:

you know why its 8

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !