Converting 21 divided by 99 to a decimal using long division

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]

The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?

Find an equation for the line that is perpendicular to the graph of 5x-3y=9 if the two lines intersect at x=30