Find the values of U and d for an arithmetic sequence with U20 = 100 and U25 = 115.

Which of the following is not a subset of {1,2,3}?

Find the quotient with the restriction.

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )