Can someone help with this question

Can someone me with my hwplz(only the circled ones)

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

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 .