Answer:
The expression to find the total cost of x pencils, 1 poster board, and (x + 1) notebooks will be:
Explanation:
Consider '
' be the number of pencils which were bought
Consider '
' denotes the cost of
pencil
Consider '
' denotes the cost of
poster board
Consider '
' be the number of notbooks which were bought
Consider '
' denotes the cost of
notebook
As we have to find the total cost. Let 'C' denotes the total cost
so the expression becomes
simplifying
Therefore, the expression to find the total cost of x pencils, 1 poster board, and (x + 1) notebooks will be: