Answer:35 is equivalent to 915 because 3 x 15 = 5 x 9 = 45. 610 is equivalent to 915 because 6 x 15 = 10 x 9 = 90. 1220 is equivalent to 915 because 12 x 15 = 20 x 9 = 180.
Step-by-step explanation:
Answer:
18 : 30, 27 : 45, 36 : 60, 45 : 75
