A40=a1 +(40-1)r 
in this case r is 3 beceause -2+3 will be 1 etc
a40=-2 +39*3
        
                    
             
        
        
        
 Answer:
The answer would be 5.
Step-by-step explanation:
If you take away 18 from 90 would be 72.
72 - 18 =54
54 - 18 =36
36 - 18 =18 
18 - 18 =0 
If you count that would equal 5 . 
Hope this helps .
 
        
             
        
        
        
Answer:
The answer to this question is C.
 
        
             
        
        
        
Answer:
26 1-foot squares of silver paper.
Step-by-step explanation:
The dimensions of the bulletin board are  6.5 feet by 4 feet.
To determine how many squares of silver paper she needs to but, we first determine the area of the bulletin board.
Area of the board =6.5 X 4= 26 Square feet
Therefore, Mrs Golden needs to buy <u>26 1-foot squares of silver paper.</u>
There will be <u>no pieces left over</u> as there is no decimal or fractional value in the area of the bulletin board.
 
        
             
        
        
        
Answer:
9 down, 5 right, compression by factor of 2, reflection across the x- axis
Step-by-step explanation: