Is this a algebra question? I just want to know?
Here is the equations in standard form
5 ( x + 3) = 6x - 3
5x + 15 = 6x - 3
x = 18 <====== this is the number
Answer:

Step-by-step explanation:
Urn U1: 3 red and 2 yellow marbles, in total 5 marbles.
The probability to select red marble is
Urn U2: 3 red and 7 yellow marbles, in total 10 marbles.
The probability to select red marble is
Urn U1: 1 red and 4 yellow marbles, in total 5 marbles.
The probability to select red marble is
The probability to choose each urn is the same and is equal to 
Thus, the probability that the marble is red is

The <u>correct answer</u> is:
The basketball player's vertebrae may be bigger than the gymnast's.
Explanation:
There are several factors that influence height; for one, the length of the legs affects one's height.
Additionally, however, if someone has bigger vertebrae, then they would be taller than another person.