What do i do next? do i convert the fraction into a decimal?

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?