Best Answer: To manipulate means to change. When you do a scientific experiment, the manipulative variable is the thing you change in order to see what happens. The responding variable is what you measure; it's the thing that changes in response to what you manipulate.
For loans and credit cards, avoid or limit interest charges. While it may sound like a bargain to pay the minimum due on your credit card so you have more money to spend on other things, the long-term costs of this strategy can be staggering.hat's because credit card interest rates can be quite high -- with the best of rates often being in the low double-digits. Instead, try to pay all or as much as possible of your outstanding credit card balance to avoid interest charges.
Credit cards have high interest rates and are considered a revolving line of credit that you can use again after you pay it down. Your credit card balance and payment history can affect your credit score. A credit card is a line of credit you can access with your card. Generally, you must sign on these purchases (exceptions may be at the gas pump or for small amounts at a drive-thru window). You will pay interest on the purchases made if not paid off in thirty days.