HELP Find the area of the regular polygon below, rounding to the nearest tenth.

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Which of the following are accepted without proof in a logical system? check all that apply.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?