Yоu cаn enlаrge by hоlding dоwn the control key аnd pressing the key with the plus sign. You can make smaller by holding down the control key and pressing the key with the minus sign. 1. At 3,000 billion disposable income, what is the amount of consumption? 2. At 3,000 billion disposable income, what is the amount of savings? 3. At 3,000 billion disposable income, what is the amount of investment?