If line PQ is parallel to base ST, and angle a is 64 degrees, what is the value of angle b ?

Giving ad is congruent to bc and angle bcd is congruent to angle adc prove d e is going to ce

How do i do this? i don’t understand

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.