50. since n_1/4<1 the equation is not true. it has no solution.
48. same thing since 45 <= z the equation is not true.
        
             
        
        
        
Answer:
Explanation: Irrational numbers are non-terminating, recurring decimal numbers i.e, a decimal expansion that neither terminates nor becomes periodic which cannot be expressed in the form of a fraction. ... Integer is a complete entity that includes every natural number along with its negatives and zero.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
(a) 6x + (x + 12) = 180   
(b) m<1 = 144       m<2 = 36
Step-by-step explanation:
7x + 12 = 180
7x = 168
x = 24
6(24) = 144
(24) + 12 = 36
 
        
                    
             
        
        
        
Answer: 1
Step-by-step explanation:
8/-4 ÷ -3/9
8/-4 × 9/ -3 = 6
 
        
             
        
        
        
In the given question, it is given that, the cost of telephone call, s, is $0.75 plus $0.25 times the number of minutes .
And we have to put the given informationin algebraic expression . 
For the cost of telephone call, we have to use s and for the number of minutes, we need to use t .
So the required expression is
