121.25
Some equivalent fractions of 39/45 are: 13/15 = 26/30 = 39/45 = 52/60 = 65/75
450/45 = 10 hours of driving time.
26/30, 39/45
39
45% of 450 = 45/100 x 450 = 202.5
450 to 45 is a 90% decrease. 45 to 450 is a 900% increase.
13 to 15 39 to 45
an average story is about 10 feet
45% of 450 is 202.5
450 of them because 450/10 = 45
45/100 of 1000 = 1000*45/100 = 450