margo places 6 and 4 nickels in a jar for the experiment she selects a penny replaces it and selects another penny if margo repeats the experiment 100 times how many times can she expect to select two pennies

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 = _