If a line segment has endpoints a(3x + 5, 3y) and b(x − 1, −y), what are the coordinates of the midpoint of ab ?
(x + 3, 2y)
(2x + 3, y)
(2x + 2, y)
(4x + 4, 2y)

You serve 3 1/4 gallons of punch at a party. your friends drink 1 1 /2 gallons of the punch. which of these containers is the smallest you can use to store the remaining punch?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0