Does anyone know how to do limits? If so could anyone help me out with my question? (In profile) Free points lol

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

The curved part of the figure is the semicircle what is the best approximation for the area of this figure