There are 3 black marbles and 4 red marbles in a bag.

c. what is the probability of picking a black marble, replacing it back in the bag, and then choosing another black marble? make sure to show your work!

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.