8. A plane flew 1,740 km in 6 hours with a tail wind. On the return trip, going into the wind, the
plane flew 570 km in 3 hours. What is the plane's speed if there was no wind? What is the
speed of the wind? Write the system of equations that would be used to solve this problem.

Factor completely. x^8 - 1/81 a) (x^4 + 1/9)(x^2 + 1/3)(x^2 - 1/3) b) (x^4 - 1/9)(x^2 + 1/3)(x^2 - 1/3) c) (x^4 + 1/9)(x^2 - 1/3)2

What is the quotient of 42/3 divided by 4 1/5

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