question 1: irrational,real
question 2: rational,real
 
        
                    
             
        
        
        
Answer:
you have come to the right place
Step-by-step explanation:
to complete the table it would be 
Cost:   | Total Cost |
 1.50    |     2.50      |
 2.50   |     4.50      |
  3.00  |    5.00       |
 
        
                    
             
        
        
        
Let x be the age of ishaan so the age of ben will be 12+x. the equation will become x=x+12 
Going 3 years back, the age of ishaan was x-3 so that of ben would be x+12-3 before 3 years. at that time the age of ben was 4 times the age of ishaan. it means x+12-3(the age of ben)=4(x-3(the age of ishaan))
solving this equation, we get the answer x=7. this is the age of ishaan in the present.
        
                    
             
        
        
        
Solve for <span>M</span><span> </span><span>by</span><span> </span><span>simplifying</span><span> </span><span>both sides of the</span><span> </span><span>equation</span><span>, then isolating the</span><span> </span><span>variable</span><span>.</span><span>M=<span>−<span>9</span></span></span>
        
             
        
        
        
Answer: 0.61
Step-by-step explanation: