Answer:
1. a
2. b (i think)
3. b
4. a
5. d
im not sure bout all this but h ope it helps you
 
        
             
        
        
        
Given:
1st term = 11
common difference = 6
f(x) = 11 + 6(x - 1)
f(18) = 11 + 6(18-1)
f(18) = 11 + 6(17)
f(18) = 11 + 102
f(18) = 113 number of seats in row 18.
Row
<span>
<span>
</span><span><span>
1              11    11  
</span><span>2       11     6    17
</span>
<span>
3       17     6   
23
</span>
<span>
4       23     6    29
</span>
<span>
5       29     6    35
</span>
<span>
6       35     6   
41
</span>
<span>
7       41     6    47
</span>
<span>
8       47     6    53
</span>
<span>
9       53     6    59
</span>
<span>
10     59     6   
65
</span>
<span>
11     65     6     71
</span>
<span>
12     71     6    
77
</span>
<span>
13     77     6    
83
</span>
<span>
14     83     6    
89
</span>
<span>
15     89     6     95
</span>
<span>
16     95     6   
101
</span>
<span>
17   101    
6   
107
</span>
<span>
18   107    
6    113
</span></span></span>
        
             
        
        
        
Answer:
9/8 or 1 1/8
Step-by-step explanation:
9/4 - 9/8
Need a common denominator, multiply 9/4 x 2/2
18/8 - 9/8 
Subtract the top numbers
18-9 = 9 
The eight stays the same
9/8 or 1 1/8
 
        
                    
             
        
        
        
10 tadpoles, have a good day
        
             
        
        
        
Answer:greatest possible error=6.5
Percent area=8.3
Step-by-step explanation: