As x increases by 1 the value of f(x) doubles so we need 2^x
When x = 0 the value of f(x) = 3
The correct answer is f(x) = 3(2^x). [the top option]
70 kilometers because you have to multiply 3.5 by 20.
9 is the standard deviation in this problem. The mean iq score is 93.
This meant that his IQ score is 93+9*3=93+27=120 :) also this john person is really smart im jealous :(