At Papa John's you are deciding on what you want for dinner. The pizza offers 8 different meats, 4 different cheeses, 3 different crust types and 2 different sauces. How many different pizzas do you have to choose from?

192pizzas

Step-by-step explanation:

- To make your own pizza you would have to choose a type of meat, cheese, crust, sauces.

- Papa John's has the following number of choices for each step:

                     Types of meat = 8

                     Types of cheeses = 4

                     Types of crusts = 3

                     Types of sauces = 2

- We have to choose "1" type from each of the available 4 categories to complete our pizza.

- We will use selection process " combinations" to determine of ways we could make our own pizza:

                     Select 1 type meat = 8C1 = 8

                     Select 1 type of cheese = 4C1 = 4

                     Select 1 type of crust = 3C1 = 3

                     Select 1 type of sauce = 2C1 = 2

Total ways to make a pizza = 8 * 4 * 3 * 2 = 192 ways

- So we would have to choose from 192 different pizzas.  

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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step-by-step explanation: