HELPPP I DONT GET THIS!!

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

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 .

What is a correct first step in solving the inequality-4(3-5x)> -6x+9