Which equation results from adding the equations in this system?

Negative 8 x + 8 y = 8. 3 x minus 8 y = negative 18.
5 x = negative 10
5 x = 26
Negative 5 x = 26
Negative 5 x = negative 10

Geometry answer picture question pls . reason and statements

If x = ∛200, which of the following inequalities is true? * 2 < x < 4 3 < x < 5 6 < x < 6.5 4.5 < x < 5.5 5 < x < 6

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.