For which rational expressions is 8 an excluded value? check all that apply.

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.

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4