Ms. Hernandez takes 56 students ti the museum. some of the students travel on a bus. going to the museum, the ratio students in the van to students on the bus is 2:5. going back to school 2 students move from the van to the bus. select true or false for each statement

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

What is the difference between regular convex and concave polygons

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.