At frank's delicatessen, frank noticed that the elasticity of customers differed in the short and longer term. frank also noticed that his increase in the price of sandwiches had other effects on his store. in particular, the number of sodas sold declined while the number of yogurts sold went up. how might you explain this pattern? if soda is a complement to sandwiches, then the cross-price elasticity is thus, as frank loses sandwich sales from the price increase, he will lose soda sales as well. if yogurt, on the other hand, is a substitute for sandwiches, then the cross-price elasticity is thus, as the price of sandwiches increases, more yogurt is consumed.
a. negative; negative
b. positive; negative
c. positive; positive
d. negative; positive

Find the interest rate for a $4000 deposit accumulating to $5234.58, compounded quarterly for 9 years

Verizon communications, inc., provides the following footnote relating to its leasing activities in its 10-k report. the aggregate minimum rental commitments under noncancelable leases for the periods shown at december 31, 2010, are as follows: years (dollars in millions) capital leases operatingleases 2011 $97 $1,898 2012 74 1,720 2013 70 1,471 2014 54 1,255 2015 42 1,012 thereafter 81 5,277 total minimum 418 $ 12,633 rental commitments less interest and (86) executory costs present value of 332 minimum lease payments less current (75) installments long-term obligation $257 at december 31, 2010 (a) confirm that verizon capitalized its capital leases using a rate of 7.4 %. (b) compute the present value of verizon's operating leases, assuming an 7.4% discount rate and rounding the remaining lease term to 3 decimal places. (use a financial calculator or excel to compute. do not round until your final answers. round each answer to the nearest whole number.)

When used-car dealers signal the quality of a used car with a warranty, a. buyers believe the signal because the cost of a false signal is high b. it is not rational to believe the signal because some used-car dealers are crooked c. the demand for lemons is eliminated d. the price of a lemon rises above the price of a good used car because warranty costs on lemons are greater than warranty costs on good used cars