4 sq.units
 
area of a rectangle = length × breadth
length = 4units
breadth = 1units 
A = l × b
 = 4 × 1
 = 4 sq.units
<h3>
<em>HOPE</em><em> </em><em>IT</em><em> </em><em>HELPS</em><em> </em><em>U</em><em> </em></h3>
<em>IF</em><em> </em><em>YES</em><em> </em>
<em>MARK</em><em> </em><em>ME</em><em> </em><em>AS</em><em> </em><em>THE</em><em> </em><em>BRAINLIEST</em>
 
        
             
        
        
        
Answer:
50 gallons of red
30 gallons of blue
Step-by-step explanation:
5 parts of the whole must be red, 3 parts of the whole must be blue, and there are 5+3=8 parts in total. 
therefore, 1 part = 80/8 = 10 gallons
red : 5 parts
5×10 = 50 gallons
blue : 3 parts
3×10 = 30 gallons
 
        
             
        
        
        
Answer:
B=100
Step-by-step explanation:
A=100
C=100 (opposite angles are equal0
B=D= 100
complementary angles are 180 so 
180-80=100
 
        
             
        
        
        
Answer:
12 of the clients had long hair
Step-by-step explanation:
12 had long hair, 8 had short hair