Answer:
4.25 grams
Step-by-step explanation:
100 / 5 = 20
85 / 20 = 4.25
4.25 grams of pure drug are in 85 milliliters of a solution.
 
        
             
        
        
        
Answer:
the answer is 15
Step-by-step explanation:
density= total population/surface area
density= 375/5^2
density=375/25=15
 
        
             
        
        
        
<span>Numeral expression
is composed of numeric constants and operation while variable expression
consist of both numeric and variables constants.
d dozen of eggs converted to numerical or variable expression:
 =>  There are 12pieces of eggs in 1 dozen, so
that is 12x1=12
 => Therefore, the numerical value is 12 x d or simply
12d </span>