Okay so i am on problem set 12 for 5th grade and i don't understand it. can someone ?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

What is the ratio fraction form of 25: 9

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 150, 120, 136, 180, 158, 175, 124, 162 minimum maximum median upper quartile lower quartile