The equation for simple interest is I = PRT. I = interest earned, P = principal/money invested, R = rate as a decimal, T = time in years.
I = (450)(0.03)(4)
I = 54
$54 is your answer
        
             
        
        
        
The answer is B) 43<span>°
Angle ADB is an inscribed angle which means arc AB has an angle twice that of angle ADB. The angle of the arc would be the same as that of the central angle AOB. So, mAOB = 86</span>°. And since, mAOB = mBOC, then mBOC = 86° and arc BC has a measure of 86° as well. Angle BDC intercepts the arc BC which means half of the angle of arc BC is mBDC. So, mBDC = 43<span>°.</span>
        
                    
             
        
        
        
Question 3 is: D. All integers are rational numbers. 
Question 4 is: C. the counting number is 4. Hope this helped :)
        
             
        
        
        
Answer:
d is the answer
Step-by-step explanation:
perimeter of rect = 2(7+3) = 20
perimeter of square = 4 a =20
a = 5
 
        
             
        
        
        
The expression for 7(2+9) IS A(B+C) which is distributive property of addition over multiplication.
Only two arithmetic procedures are subject to the commutative property: Multiplication and Addition
  A + B = B + A Which is Commutative property of addition
 A.B = B.A, which is a commutative property of multiplication.
Distributive property is A(B+C) =AB+AC
 The operation on numbers that are available in brackets can be distributed for each number outside the bracket, according to the distributive property. It is one of the mathematical properties that is used the most. Commutative and associative qualities are the other two important features.
from the given data 7(2+9) =7*2+7*9
                                                 =14+63
                                                 =77
 Now, we can clear that 7(2+9) =7(9+2) 
Hence, the expression for commutative property of addition is A(B+C) = AB+AC.
To learn more about commutative property, visit 
brainly.com/question/28387735
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