If interest compound at 20% per year how long will it take 50000 to accumulate to 86400

3 years. 50000x1.2^3=86400

What’s the question here? what have you been learning about?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.