Need help in econ homework

Thirty years ago daniel bought a plot of land for $50,000 when the cpi was 50. now the cpi is 180 and he sold the land for $180,000. what issue might inflation cause for daniel?

Asmartphone manufacturing company uses social media to achieve different business objectives. match each social media activity of the company to the objective it the company achieve.

On december 31 of the current year, the unadjusted trial balance of a company using the percent of receivables method to estimate bad debt included the following: accounts receivable, debit balance of $97,900; allowance for doubtful accounts, credit balance of $1,031. what amount should be debited to bad debts expense, assuming 6% of outstanding accounts receivable at the end of the current year are estimated to be uncollectible?