Please help me in question 4 and 5...

How has apple been able to sustain its competitive advantage in the smartphone industry? a. by reducing its network effects b. by targeting its new products and services toward laggards c. by driving the price for the end user to zero d. by regularly introducing incremental improvements in its products

On july 2, year 4, wynn, inc., purchased as a short-term investment a $1 million face-value kean co. 8% bond for $910,000 plus accrued interest to yield 10%. the bonds mature on january 1, year 11, and pay interest annually on january 1. on december 31, year 4, the bonds had a fair value of $945,000. on february 13, year 5, wynn sold the bonds for $920,000. in its december 31, year 4, balance sheet, what amount should wynn report for the bond if it is classified as an available-for-sale security?

Maria's family drove 140 mi to her grandparents' house and averaged 56 mi/h on the way thereon the return trip, they averaged 50 mi/hwhat was the total time maria's family spent driving to and from her grandparents' house? o2.5 ho 2.6 ho5.2 ho 53 hnext