Working conditions for children in the early 20th Century can best be described as
a. Beneficent and worldly
b. Technical and boisterous
C. Dandy and fine
d. Dangerous and unhealthy

In angle pqr find the measure of

Bring the fraction a/a-4 to a denominator of 16-a^2

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.