In the presence of declining marginal rates of substitution, consumers who again and again sacrifice a unit of one good cannot remain on their original indifference curve unless they receive as compensation:. a. again and again equal units of another good.
b. ever smaller units of another good.
c. ever larger units of another good.

The following information is needed to reconcile the cash balance for gourmet catering services.* a deposit of $5,600 is in transit.* outstanding checks total $1,000.* the book balance is $6,400 at february 28, 2019.* the bookkeeper recorded a $1,800 check as $17,200 in payment of the current month's rent.* the bank balance at february 28, 2019 was $17,410.* a deposit of $400 was credited by the bank for $4,000.* a customer's check for $3,300 was returned for nonsufficient funds.* the bank service charge is $90.what was the adjusted book balance?