Cientists tag a group of dolphins as they are born and release them in the water. Later, the catch a sample of dolphins that return to shore and check them for tags. In one sample, 40 out of 800 returning dolphins have tags. What is the best prediction of the total number of tagged dolphins in a sample of 2000? There would be about
dolphins that were tagged in the sample of 2000.

Abcd ≅ klmn ≅ pqrs ≅ wxyz given that information, which figures are reflections of abcd?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 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 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?