Answer:
a) Her rate is 1 mile per hour  for Monday’s run
b) 0.447 m/second
c) In fraction  20467m/180000 seconds
Step-by-step explanation:
Speed = distance / time = 1 mile/ 1 hour   
            = 1 mile per hour 
Her rate is 1 mile per hour  for Monday’s run
part A. According to the question, the unit rate is to be expressed in miles per hour units.
Part B. 
Speed = distance / time = 1 mile/ 1 hour   
            = 1 mile per hour 
But 1 mile = 1609.34 m
and 1 hour = 3600 seconds 
There fore  
1 mile/ 1 hour  = 1*1609.34/ 1*3600 seconds 
                     = 0.447 m/second
Part C. 
1 mile/ 1 hour  =1609.34/ 3600 seconds 
                      = 1609.34 * 100/100 * 1/3600  ( multiplying and dividing by 100 to remove the decimal)
                      = 160934/360000
                       = 20467m/180000 seconds
                        
The first five multiples of 1 are 2,3,4,5,6,7,8, 9......
The LCM of 1 and 1 is 1