Which of the following equations has an infinite number of solutions?

3x + 5 = 2x - 1 + x
2x - 1 = x + 3
-x - 1 = -1 - x
x = 1/2

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list