Trevor solved the system of equations below. what mistake did he make in his work? 2x + y = 5 x − 2y = 10 y = 5 − 2x x − 2(5 − 2x) = 10 x − 10 + 4x = 10 5x − 10 = 10 5x = 0 x = 0 2(0) + y = 5 y = 5
a. he should have substituted 5 + 2x
b. he combined like terms incorrectly, it should have been 4x instead of 5x
c. he subtracted 10 from the right side instead of adding 10 to the right side
d. he made no mistake

The system of equations graphed below has how many solutions? y = 2x + 2

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

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy