[tex]\text{The expression is representing the cost of a hamburger}\\\\\text{We know that from the question that the cost of a pizza slice}\\\text{is represented as "p", and the hamburger costs 3 more dollars}\\\text{than a pizza slice.}\\\\\text{So you're adding 3 dollars to the cost of the pizza to get the cost of a}\\ \text{hamburger}\\\\\text{Therefore, (p+3) = cost of hamburger}[/tex]
