Part A:
Expression [tex]15x+100y[/tex]
The constants are 15 and 100
The variables are [tex]x[/tex] and [tex]y[/tex]
Part B:
Expression [tex]15x+100y[/tex] has two terms; [tex]15x[/tex] and [tex]100y[/tex]. We know this because both have different variables attached to them
Part C:
The term [tex]15x[/tex] is the expression for the total earned from her allowance