There might be a variety of averages for the 12 boys.
Sergio will buy first! He is earning more than Lia per week, and it would take him about 34 weeks and he’d haves little money left over by that time :)
Comparing it to a system of equations, the expression is represented as follows:
18g + 5.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
For this problem, we consider g as the variable. Then:
- 18 times the quantity g is 18g.
- Adding 5 to the expression, we have that 18g + 5.
More can be learned about a system of equations at brainly.com/question/24342899
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