Answer: d. Pen and pencils.
Explanation:
Cross-price elasticity measures the degree of responsiveness of the demand for a certain good towards the change in the price of a related good. Percentage is used to measure cross-price elasticity.
In case of two goods like pens and pencils, cross price elasticity is positive. That is, if the price of a pen increases, it will lead to an increase in the demand for pencils. The propertional change in price of pens give a positive relative change in the demand for pencils.
Answer:
3%
Explanation:
Increase in money supply ($ billion) = Increase in reserves / Reserve ratio
Increase in money supply ($ billion) = 150 / 0.1
Increase in money supply ($ billion) = 1,500
Increase in price level = (Increase in money supply / 100) * 0.2
Increase in price level = (1,500/100) * 0.2
Increase in price level = 3%
Answer : The amount needed to spend to save $170 is, $32.3
Explanation :
As we are given that an online buying club requires an annual fee of $170 and a 19% discount on purchases.
Now we have to determine the amount needed to spend to save $170.
As, for every $100 the discount will be = $19
So, for every $170 the discount will be = 
= $32.3
Thus, the amount needed to spend to save $170 is, $32.3
