If each member of the data set {2,2,3,5,8} is multiplied by 2, which changes will take place in the mean, median and mode of the data

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Hi, can anyone show me how to do this problem? 100 points for this. in advance

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250