Iq scores are normally distributed with a mean of 100 and a standard deviation of 15.
what percentage of people have an iq score higher than 85, to the nearest tenth?

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _