Does someone know how to do this if you do can you please answer these questions thanks

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?

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?

Which of the following graphs could represent a cubic function?