Tamara's savings account change is +$80, calculated by adding her $50 deposit and Liam's $30 withdrawal as a negative change. The result represents Tamara's increased savings.
Tamara's deposit into her savings account is a positive change, represented by the integer +50.
This positive value signifies an increase in her savings balance. In contrast, Liam's withdrawal from his checking account is a negative change, represented by the integer -30, indicating a decrease in his checking balance.
Therefore, the change in Tamara's savings account can be calculated by subtracting Liam's withdrawal from Tamara's deposit: +50 (Tamara's deposit) - (-30) (Liam's withdrawal) = +80.
The final answer is +80, indicating an overall positive change in Tamara's savings account balance.