Quick stats problem I need help with

[MGMorden]

I feel like a dummy about this (working on some stuff for stats class and don't know where to begin on this. I can get the harder problems too . . . ). Anways. A company figures the return rate for an investment can be described by a normal distribution with a mean of 20% and a population std dev of 3%. What is the probability that the rate of return will exceed 26%?