Answer: 5
Step-by-step explanation:
a^2 + b^2 = c^2
12^2 + x^2 = 13^2
144 + x^2 = 169
x^2 = 25
square root both sides
x = 5
to check, do 12^2 + 5^2 =169
sqrt of 169 is 13
hope this helps
 
        
             
        
        
        

x equals 25% of the cost. 
.25 equals 25%
Therefore x=12
The awnser is $12
 
        
             
        
        
        
Answer:
i think it is 43
Step-by-step explanation:
 
        
             
        
        
        
Answer:
90
Step-by-step explanation:
no of total groups = 2+6+4=12
so in total there are 12 groups
each have equal number of members
so the answer is the number that is not a factor of 12
i hope this help you
this is quite high order thinking question
so don't know about the steps
if you understood then you may write the steps yourself
 
        
             
        
        
        
Answer:
-1
Step-by-step explanation:
The common difference is the constant amount of change between the numbers in an arithmetic sequence. 
To find the common difference, you take the last term and subtract it by the previous term.
