Additional Example 2 Samuel has $60 in his savings account before he makes a deposit of $120. After 2 weeks, he withdraws $120. How did Samuel's savings account balance change?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.