Answer:
80 degrees.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1/2 -2/1
Step-by-step explanation:
122
8mar12 
212323
123345wqesfef
 
        
             
        
        
        
Answer:  30+x+y
Step-by-step explanation:
- Commutative Property of Addition : a+b= b+a , where a and b are any arbitrary numbers.
Given : Number of CDs sold by friend on first day = 14
Number of CDs sold by friend on next day = x
Total CDs sold by friend  = 14 +x
Number of CDs sold by you on first day = 16
Number of CDs sold by you on next day = y
Total CDs sold by you  = 16+y
The expression that shows the total number of CDs sold both days = 
Total CDs sold by friend  + Total CDs sold by you
 =  14 +x+ 16+y
= 14 +(x+ 16)+y
= 14 +(16+x)+y   [By Commutative Property of Addition.]
= 14+16+x+y
= 30+x+y
Hence, the expression that shows the total number of CDs sold both days :
 30+x+y
 
        
             
        
        
        
Answer: 
Step-by-step explanation:
 Remember the logarithms properties:
 
 Then,simplifying:
 
 Apply base 8 to boths sides and then solve for "x":
 
 
 
 
        
                    
             
        
        
        
Answer:
8.4 x 10^10 in scientifif notation is the same, in regular its 84000000000
3 x 10^7 in scientific notation is the same and in regular its 30000000