Which of the following will result in a rational answer? COE
multiplying by a fraction
adding the square root of a non perfect square to a whole number
adding the square root of a perfect square to
multiplying a fraction by a repeating decimal.
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Hello people, i have a math question that i need with, me, i will give the correct one brainiest, and for the other correct people, a and 5 stars.

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!