perimeter or rectangle= 2l+2w
Surface area of a cylinder=2(pi)r^2+2(pi)r
Volume of a triangular prism=Bh
Area of a circle=(pi)r^2
 
        
                    
             
        
        
        
Answer:
If each book cost $20.45 then you times it by 21 and the answer you would get is 429.45
Step-by-step explanation:
im 99% that its correct
 
        
                    
             
        
        
        
Answer:
Option B
x ≥ (-5)
Step-by-step explanation:
<h3>
<u>Given</u>;</h3>
So,
-3(x + 4) ≥ x + 8
-3x – 12 ≥ x + 8
Add both sides 12 we get,
-3x – 12 + 12 ≥ x + 8 + 12
-3x ≥ x + 20
Similarly, subtract x from both sides we get,
-3x – x ≥ x – x + 20
-4x ≥ 20
Then, divide both sides by (-4) we get,
-4x/(-4) ≥ 20/(-4)
x ≥ -5
Thus, The answer is x ≥ (-5).
 
        
             
        
        
        
Answer:
Interest in 3 years = $456.52
Step-by-step explanation:
As we know the the formula of compound interest 
Total amount =  
Here n = number of times amount is compounded
r = rate of interest 
t = period
Here A = $2500
r = 0.0575
n = 1 (compounded annually)
t = 3 years
Therefore amount after 3 years 

P =2500(1.0575)³
   = 2500×1.18
   = $2956.52
We have to calculate the interest then 
Interest = $2956.52-$2500 = $456.52
So after 3 years interest gained = $456.52
 
        
                    
             
        
        
        
Answer: =3.5x Slope: 
3.5
y-intercept: 
0
Step-by-step explanation: