Hey! pls help i’ll give brainliest

Taking algebra two apex courses and need with these questions

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9