Find the area of the following shape. You must show all work to receive credit. A(0,4)
B(2,2)
C(1,2)
D(1,0)
E(-4,0)

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

Find the distance between (7,-6) and (-3,-9)

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?