Please help asap for 7 & 8!! I will mark you as brainliest :)

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Which of the functions below could have created this graph?

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.