The area of a blackboard is 1 1/3 square yards. A poster’s area is 8/9 square yards. Find the unit rate and explain, in words, what’s the unit rate means in the context of this problem. Is there more than one unit rate that can be calculated? How do you know?

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.