Step-by-step Answer:
AN is height, so A is perpendicular to BC.  (See image attached).
BN = 18
AN = 24
AC = 40
All as labeled.
ABN is a right triangle, with AB = sqrt(18^2+24^2)=sqrt(324+576)=30
ACN is a right triangle, with CN = sqrt(40^2-24^2)=sqrt(1600-576) = 32
=>
BC = BN + NC = 18 + 32 = 50
 
        
             
        
        
        
When you mark up a price, multiply the original price by 1 plus the amount of the mark up as a decimal.
 15% = 0.15 + 1 = 1.15
$60 x 1.15 = $69
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The distilled water is solute and the bleach is the solvent. The amount needed of bleach is:

