What is a decimal that is equivalent to the expression (2 x 10)+(5 x 1)+(7 x 1/10)+(6 x 1/100)

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Need solving this second acceleration problem.

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?