Which of the following is a polynomial? Choose all answers that are correct. A. −4x√−2x
B. 5x2 – x–1 + 2
C. –0.4a3 – 5b
D. 4ab2 – 2b + 1

What is the simplified expression for 6(2(y+x))

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?