What is x in the segment addition problem of 2x + 23 + 7 = x + 22?

Can (3,5 and square root 34) be sides on a right triangle?

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?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator