Answer:
Step-by-step explanation:
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Number 7 is 111 because they are alternate interior and 8 is 90
        
             
        
        
        
Answer:C
Step-by-step explanation:
 
        
             
        
        
        
19 because 1 ten = 10 ones and 9 one plus 10 ones equals 19 altogether
        
             
        
        
        
4.15, 6.3, 8.45, 10.6, 12.75
You just subtract 4.15 from 6.3 and you get a difference of 2.15. Then you add it to 8.45 giving you the answer of 10.6 and then you add 2.15 to that getting 12.75.