The Kennedy Middle School cafeteria charges students $3 for 1/6 of a pizza. What is the cost per pizza?

These question are hard can you me with answers

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

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?