Answer:
the answer is -4
Step-by-step explanation:
step 1: -7m<28
step 2: -7m÷ (-7)>28÷(-7)
step 3: m>28÷(-7) 
step 4: m>-28÷7
step 5: m>-4
 
        
             
        
        
        
Answer:
80.64
Step-by-step explanation:
12.6*6.4=80.64
 
        
                    
             
        
        
        
Answer:
Associative Property
For multiplication, the rule is "a(bc) = (ab)c"; in numbers, this means 2(3×4) = (2×3)4.
 
        
             
        
        
        
Answer:= 4.35970 × 10-8(scientific notation)
= 4.35970e-8(scientific e notation)
= 43.5970 × 10-9(engineering notation)
(billionth; prefix nano- (n))
= 0.0000000435970(real number)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
(3x-1) + (3x-1) + (2x+1) = 55
Step-by-step explanation:
1.  3x + 3x + 2x = 8x
2.  -1 + -1 + 1 = -1
3. 8x -1 = 55
4.  8x = 55 + 1
5.  8x = 56/8
6.    x = 7