WILL SOMEONE PLZ HELP ME Approximately how long will it take you to double your savings of $500 if you open a CD that earns 4% interest, according to the rule of 72?

18 years

Step-by-step explanation:

Rule of 72

(72)/(interest)=years to double

72/4=18

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

part a: 1.08

part b: 27.59