Answer:
$390
Step-by-step explanation:
y=30x+90
y+30(10)+90
y=300+90
$390 is the total cost of joining the club and playing 10 games during the
year
An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations (addition, subtraction, etc.). Expressions are made up of terms.
Given
y=30x+90
y+30(10)+90
y=300+90
To know more about algebraic expression refer to :
https://brainly.com/question/4344214
#SPJ2