7) You invest $500 into an account that
recieves interest compounded continusly.
10 years later, you remember you had the
account and find that it is worth $860.
what was the interest rate for the account?

i need more details

step-by-step explanation:

it would be 3 0ver 24 very unlikely.

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the figure is a concave pentagon.

step-by-step explanation:

in mathematical context, a pentagon is a flat, two-dimensional closed shape (polygon) with 5 straight sides and 5 angles.

now a pentagon is said to be concave if one or more corners bend inwards and at least one of its angles is 180 degrees or more than 180 degrees.

in the given figure, we can see that we have a corner which is bending inwards and an angle which is clearly greater than 180°. therefore, it is a concave pentagon.