G = - h/3 + 11/3
H = 11 - 3g
I hope this helps
        
             
        
        
        
Answer:
AC ≈ 5.03 
Step-by-step explanation:
We can solve the problem above using the trigonometric ratio, they are;
SOH CAH TOA
sin Ф = opposite / hypotenuse
cosФ= adjacent/ hypotenuse
tan Ф = opposite / adjacent
From the diagram above, in reference to angle B;
opposite =AC     and   adjacent =BC
Since we have opposite and adjacent, the best formula to use is 
tanФ = opposite / adjacent
tan B = AC  / BC
tan 40 =  AC/ 6
Multiply both-side of the equation by 6
6× tan 40   =  AC/ 6  ×  6
At the right-hand side of the equation, 6 will cancel-out 6 leaving us with just AC
6×tan 40 = AC
 5.034598  = AC
AC ≈ 5.03   to the nearest hundredths
 
        
             
        
        
        
Answer:
The average monthly expenditure is 1,155.35 $.
Step-by-step explanation:
The average of any sequency is given by the sum of it's individual parts divided by the number of parts it has. So in this case the average of monthly expenditure will be the sum of all individual expenditures divided by the number of months. The question can be solved like this:
average = (March+ April + May + June + July+ August)/6
average = (1,249.59 + 1,365.38 + 1,024.3 + 1,100.4 + 992,4 + 1,200.02)/6
average = 1,155.35 $