Dora bought a bottle of nail polish that was marked down by 20 percent from its original price of $4.50. including a 9 percent sales tax, what is the final cost of the bottle of nail polish?

$0.90
$0.98
$3.60
$3.92

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles