Can someone help me with this please? I will mark brainliest

Which of those sequences is a geometric sequence

How do you determine whether a relationship represented as as graph is linear or nonlinear

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .