Given triangle xyz is isosceles what is xz if the perimeter is 107 and xz equals 1/2 xy

Which graph represents 2x-5y< 15

Which of the following are parts of a sphere

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?