An equal-sized spinner is used to model probabilities
The spinner should have 4 equal sections
The number of friends is given as:

When Elisondra is included, the total number of people that went to the restaurant is:

Substitute 3 for Friends

Add 3 and 1

The number of people that went to the restaurant is the number of equal sections of the spinner.
Hence, the spinner should have 4 equal sections
Read more about spinners at:
brainly.com/question/16425041
Answer:
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Step-by-step explanation:
X² + y = 4 and -y³ = 1x -5 are not linear equation because they contain a variable with a exponents. These types of equation are called quadratic equations.
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