There are 
ways for the teacher to decide which student she will teach during each lesson time if she must teach each student exactly 3 times. Here, "!" represents the factorial.
A number's factorial is the result of multiplying the integer by each natural number below it. Factorial can be symbolized by the letter "!". Thus, n factorial is denoted by n! and is the result of the first n natural numbers.
A whole number's "n" factororial is the sum of that number and each whole number up to one.
When a question asks you to determine how many different ways you can arrange or order a given number of items, you use a factorial.
Learn more about factorials here:
brainly.com/question/25997932
#SPJ1
Answer:The information we need is how much money she had and how much she spent, also how much the games and Ferris wheel costs
Step-by-step explanation:
Vertical angles, because the definition of vertical lines is each of the pairs of opposite angles made by two intersecting lines.
Answer: 5.4
Step-by-step explanation:
