Suppose the 13 inch is aware cost $.78 at the same rate how much (in cents) will 33 inches of wire cost

When comparing to thing with same rate, set up a proportion:

Inches/cost

13/.78=33/x

(13) (x) = (.78) (33) [cross multiplied]

13x=25.74 [simplified]

13/13x=25.74/13 [division property]

x=1.98

33 inches of wire will cost $1.98.