Answer:
A variable represents an unknown, numerical value that can vary, taking on different values.
Step-by-step explanation:
In algebra/math, a variable stands for an unknown quantity that can vary, taking on different values. It is often represented by the letter x, but it can be different kinds of symbols such as a, b, z, etc.
Answer: there is nothing shown below
Step-by-step explanation:
It's a 20% chance they get the right gift
Answer:
the answer is A
Step-by-step explanation:
There are 54 trials in the experiment and not 45 trials. Thus, Mary is incorrect.
Rational because irrational numbers cannot be expressed as fractions