Xavier has $23.50 in his savings account. He deposits $35 every week. His mother also deposits $20 into the account every time Xavier washes the car. His savings account balance can be shown with the following expression:
20c + 35w + 23.50
Part A: Identify a coefficient, a variable, and a constant in this expression. (3 points)
Part B: If Xavier saves for 12 weeks and washes the car 3 times, how much will he have in his account? Show your work to receive full credit. (4 points)
Part C: If Xavier’s mother deposited $25 after each car wash, would the coefficient, variable, or constant in the expression change? Why? (3 points)