Melinda leaves her house and drives to the library. She travels v miles.
Next, she leaves the library and goes to the store. She
travels miles.
When she is done at the store, she heads back to her
house. If the distance from the store to her house is
15.6 miles, then she will have traveled miles
total.

Yvaries directly as x. y =90 when x=6. find y when x=13

What multiplys to be 1 but adds up to be 4

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 ?