We know that
[area of a circle ]=pi*r²
diameter=4 in
 r=4 in/2-----> 2 in
so
area=pi*2²-----> area of the circle=4*pi in²
the answer is
the area, in square inches, of the circle is <span>3.14 • 2²</span>
        
                    
             
        
        
        
Answer:
B and D
7/12 cups 
Step-by-step explanation:
2 1/3 + 2 1/4 = cups of flour needed
4 = cups of flour had
2 1/3 + 2 1/4 
To have the same denominator, we take the lcm 
2 + 2 + (4/12 + 3/12) = 
2 4/12 + 2 3/12 - 4 
Or 
2 + 2 + (3 + 4) / 12 - 4 
2 + 2 + (3 + 4) / 12 - 4 = 4 7/12 - 4
4 7/12 - 4 = 7/12 cups of flour needed 
 
        
             
        
        
        
11 liters of 25% orange juice, 4 liters of 10% orange juice:
1' let x to be 25% orange juice and y be 10% orange juice
2' .25x+.10y=(15).21
3' x+y=15
4' 2.5x+y=31.5 divide all sides by 10
5' -x-y=-15 multiply all sides by -1
6' 1.5x=16.5
7' x=11
8' y=15-11=4
so 11 and 4 are the answers.