An exponential function of form fog by includes the points (2.16)(3,64), and (4256). What is the value of b?

The percent discount was 120

Maybe the answer is 20mm. all i really did was just multiply, which is obvious.

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.