Evaluate the expression:
v•w
Given the vectors:
r = <5,-5, -2>; v = <2,-8,-8>; W = <-2, 6, -5> (2 points)

The unpaid balance on a mastercard charge was $1,056.23. during the month, payments of $300 and $250 were made and charges of $425 and $274.16 were added. if the finance charge is 1.2% per month on the unpaid balance, find the new balance at the end of the month. $1,205.39 $1,218.06 $918.06 $1,768.06