8 am at 0
8:18 at 4.5
8:48 at 7.5 miles ???
18 min = .3 hour
48 min = .8 hour
in first .3 hours speed = 4.5/.3 = 15 mph
in next .5 hours = speed = 3/.5 = 6 mph
average speed for the whole trip = 7.5 miles/.8 hours = 9.375 mph
 
        
             
        
        
        
Answer:
-92.
Step-by-step explanation:
2 - 6 is -4.
-4 x 23 is -92.
 
        
             
        
        
        
The second choice than the fir2nd choice than the first choice for the second question 
        
                    
             
        
        
        
Answer:
0.750 kg
Step-by-step explanation:
 Hi there ,
As you know 1 kg = 1000g
So when we convert g to kg then we divide the given value of grams by 1000. 
So in this case we have 750 grams, changing it we have :

Since there are 3 zeroes in 1000 we move the decimal point by 3 places to the left leaving the answer as : 0.750 kg or  kg
 kg
Please mark me as brainliest if you found the above answer helpful
 
        
             
        
        
        
Answer:
Its C
Step-by-step explanation: