Alonzo is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Alonzo has been adding money. Suppose that x and y are related by the equation 650 + 20x = y.
Answer the questions below.
Note that a change can be an increase or a decrease.
For an increase, use a positive number. For a decrease, use a negative number.