Identify any and all errors that marissa made in her steps. marissa should have only plotted the fractions on the number line. marissa should have used 30 as the common denominator. marissa should have listed the numbers from right to left after she plotted them on the number line. marissa should have used a common denominator of 30 and should have listed the numbers from right to left after she plotted them on the number line.

Exercise: counting committees 0.0/2.0 puntos (calificable) we start with a pool of n people. a chaired committee consists of k≥1 members, out of whom one member is designated as the chairperson. the expression k(nk) can be interpreted as the number of possible chaired committees with k members. this is because we have (nk) choices for the k members, and once the members are chosen, there are then k choices for the chairperson. thus, c=∑k=1nk(nk) is the total number of possible chaired committees of any size. find the value of c (as a function of n ) by thinking about a different way of forming a chaired committee: first choose the chairperson, then choose the other members of the committee. the answer is of the form c=(α+nβ)2γn+δ. what are the values of α , β , γ , and δ ?