Work the information to set inequalities that represent each condition or restriction.
2) Name the
 variables. 
c: number of color copies
b: number of black-and-white copies
3) 
Model each restriction:
i) <span>It
takes 3 minutes to print a color copy and 1 minute to print a
black-and-white copy. 
</span><span>
</span><span>
3c + b</span><span>
</span><span>
</span><span>ii) He needs to print 
at least 6 copies ⇒ 
c + b ≥ 6</span><span>
</span><span>
</span><span>iv) And must have
the copies completed in 
no more than 12 minutes ⇒</span>
3c + b ≤ 12<span />
4) Additional restrictions are 
c ≥ 0, and
 b ≥ 0 (i.e.
 only positive values for the number of each kind of copies are acceptable)
5) This is how you 
graph that:
i) 3c + b ≤ 12: draw the line 3c + b = 12 and shade the region up and to the right of the line.
ii) c + b ≥ 6: draw the line c + b = 6 and shade the region down and to the left of the line.
iii) since c ≥ 0 and b ≥ 0, the region is in the 
first quadrant.
iv) The final region is the 
intersection of the above mentioned shaded regions.v) You can see such graph in the attached figure.
 
        
        
        
P = d - 5.50
The cost of buying materials will be subtracted from what he earns. Therefore, what’s left over is the profit
        
             
        
        
        
The answer is 7.07 times, with rounding, still 7.07.
        
             
        
        
        
Beach Mark is a multiplication to remember
        
                    
             
        
        
        
Answer:
s=50.999 and you can round it to s=50.1
Step-by-step explanation: