According to the rule of 72, in about how many years $80 be worth $40 if the rate of inflation is 5.4% A. 14.8 years
B 7.4 years
C 13.3 years
D. 12.8 years

The number of possible solutions of a polynomial can be found by looking

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?