The stem-and-leaf plot below shows the ages of each person in a water aerobics class. Stem Leaf
5 5 5 8
6 0 0 2 4 5 9
7 1 1 4 5 8
KEY
5|5 = 55 years old
What fraction of the water aerobics class is older than 62?

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab