Using the rule of 72,- 7how long will it take for the principal to double with an annual compound interest rate of 6 years

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation:

step-by-step explanation:

there's the chart

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"