Respuesta :

AprilKitties
What you can say is:

2 choices for the first one (metals)

5 choices for the second choice stemming off of all the possible first choices (gems)

2 choices stemming off of all those combinations (shape)

So basically it would be:

2 * 5 * 2 

Which is equal to 20.

He can have 20 different choices.

What is probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Earl can choose gold or silver= 2 choices.

One of 5 different gemstone= 5 choices.

2 choices for round or square.

So total choices he have

=2 * 5 * 2

=20 different choices.

Hence, he have 20 different choices.

Learn more about probability here:

brainly.com/question/11234923

#SPJ2

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