[[1,3,5,7],[3,7,15,27],[5,15,37,79] ,[7,27,79,x]]
what is the value of x?

What is the equation of the line graphed?

Mrs. robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. mr chang bought the same novel at a different bookstore for 10% off its regular price of $25. which person received the better discount?

Use the balanced scale to find the conversion factor that can be used to convert the number of blocks to the weight of the blocks in pounds.