Use a calculator to find that 787/1000 = 0.787 and 7/9 = 0.77777... (the 7s repeat forever)
We see that 0.787 is larger than 0.77777... so that means 787/1000 is larger
You can think of it as 787 is larger than 777 if you move the decimal point 3 spots to the right for each decial value, then round to the nearest whole number.
2.0² * π = 12.56637... 12.56637... * 9.6 = 120.6371579... 120.6371579.. / π = 38.4 √38.4 = 6.196773354... --> the radius of circle A dialated by 9.6 = 6.2 cm
I'm a little unsure about this one, but I believe that scale factor is the rule that yields dilution, as it specifies how the diluted figure is placed on the graphing plane.
