According to the rule of 72, if katelyn invests $50, $100, and $200 into three separate accounts with the same interest rate, which amount will double fastest?

All amount will double at the same time.

Step-by-step explanation:

The rule of 72, is the simple and popular way to determine how long an investment will take to double given a fixed annual rate of interest.

By dividing 72 by the annual rate of interest we can obtain an estimate of how many years it will take for the initial investment to be double.

For example:  If $100 is invested at the rate of 6% ( 72/6 = 12 years ) It will take 12 years to be $200.

In this question Katelyn invests $50, $100 and $200 into three separate accounts with the same interest rate, Therefore, amount will double at the same time.

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a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "