Calendar or clock which is more precise

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 graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0