Question

PROBABILITY PROBLEM! NEED HELP AND EXPLAIN/SHOW WORK

Answer 1

10 + 5 + 1 = 16 - all balls
The probability that the first ball is red:
$P(R)=\dfrac{10}{16}=\dfrac{5}{8}$
The probability that the second ball is black:
$P(B)=\dfrac{1}{15}$
Together:
$P(R)\cdot P(B)=\dfrac{5}{8}\cdot\dfrac{1}{15}=\dfrac{1}{24}$