Simplify the following fraction 25/100

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points

Find the solution set for this equation: t^2+7t=0 separate the two values with a comma.