Answer:
domain = ( 3, 11, 121, 34, 23)
range = ( 21, 34, 1, 23)
 
        
             
        
        
        
Fixed price costs
Crew salaries            350
fuel                              120
overheads                  170
Total fixed cost:          640
Variable costs per passenger
refreshments           $ 6.50
refund                       $ 3.64
total variable cost:   10.14  
Sales income
<span>Average ticket      $ 36 .40
</span><span>Break-even point =   <u>                                 (fixed costs)                           </u>
                                    (income per passenger – costs per passenger) </span><span>
</span>
Break even =  640 / (36.40-10.14) = 640 / 26.26 = 24.37
        
             
        
        
        
Answer:
60 × 50 = 3000
7 × 50 = 350
60 × 4 = 240
7 × 4 = 28
3000 + 350 + 240 + 28 =3618
54 × 67 = 3618