a) Sammie earns
  £320×4% = £12.80
each year.
Joel earns
  £420×3% = £12.60
each year.
Sammie earns the most interest.
b) Joel's interest after 5 years is 
  £12.60×5 = £63
so the total amount of money Joel will have is
  £420 +63 = £483
        
             
        
        
        
Answer:
28 years
Step-by-step explanation:
Sum of the years of Lance , Ted, Rosalinda = 39 + 22 +45 = 106 year
Sum of the years of Lance , Ted, Rosalinda & Erik = 33.5*4 = 134.0 year
Age of Erik = 134 - 106 = 28 years
 
        
             
        
        
        
Ok??????????????????????????
        
             
        
        
        
5) the slope is -2, y-intercept is 1. 6) slope is 1, y-intercept is 1. 7) slope is -5, y-intercept is 8. That’s all I could find :( sorry. Hope that helped. I’m also not that good at math
        
                    
             
        
        
        
5
Mark brainliest please 
Hope this helps you