PLS HELP DUE AT MIDNIGHT

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

How do i do this activity, is appreciated

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.