Okay I will have an example for you. 3 and 2/7. STEP 1) multiply the denominator by the whole number. 3×7=21. STEP 2) add the numerator to 21. 21+2=23. STEP 3) 23 is the new numerator so put 23 over 7. FINAL SOLUTION 23/7.
        
             
        
        
        
Answer:
(2x+11)x (2x-11)
Step-by-step explanation:
 
        
                    
             
        
        
        
2.6e2*3.9e11=1.014e+14 pounds of oxygen per year.
        
             
        
        
        
Answer:
 24420.5
Step-by-step explanation:
Multiply all the numbers together to get the length of the cubiod
221*8.5*13= 24420.5
Hope this helped!