The "+=" operator is used for assignment with addition. It adds the right operand to the left operand and assigns the result back to the left operand.
+= cheat sheet for homework
assignment operator: Symbols used in programming languages to assign values to variables. Examples include "=", "+=", "-=", etc.
operand: Values manipulated by operators within an expression.
arithmetic operator: Mathematical symbols like +,-,* used for performing calculations in programming.