What is the x-intercept of the line containing the points (-6, 10) and (12,-2)

Which of the following shows the graph of y=2e^x?

This trip the family will spend $117.96. the next trip they will spend $119.27. this is an increaseof $117.96 - $119.27| or an increase of $1.31.what is the percent of increase? round your answer to the nearest whole percent. type your answer into the space.the percent of increase is: resetsubmit

How do you solve questions 29 and 31?