Jamal consumes only two goods: lollipops and chewing gum. He treats these two goods as perfect substitutes, with one lollipop being a perfect substitute for a pack of chewing gum. Initially, the price of a lollipop is $2.20, while packs of chewing gum are $5.50 each. Jamal has $20 per week to spend on these two goods. Suppose the price of chewing gum decreases to $3.30. In your responses, give your answer to two decimal places.
What is the substitution effect associated with the change in the price of chewing gum?
What is the income effect associated with the change in the price of chewing gum?

Costco wholesale corporation operates membership warehouses selling food, appliances, consumer electronics, apparel and other household goods at 471 locations across the u.s. as well as in canada, mexico and puerto rico. as of its fiscal year-end 2005, costco had approximately 21.2 million members. selected fiscal-year information from the company's balance sheets follows. ($ millions). selected balance sheet data 2005 2004 merchandise inventories $4,015 $3,644 deferred membership income (liability) 501 454 (a) during fiscal 2005, costco collected $1,120 cash for membership fees. use the financial statement effectstemplate to record the cash collected for membership fees. (b) in 2005, costco recorded $46,347 million in merchandise costs (that is, cost of goods sold). record thistransaction in the financial statement effects template. (c) determine the value of merchandise that costco purchased during fiscal-year 2005. use the financial statementeffects template to record these merchandise purchases. assume all of costco's purchases are on credit.