Answer:
∡b = 53°
∡d = 127°
∡c = 127°
Step-by-step explanation:
in trapezoids, the two top angles are equal and the two bottom are equal
also, there are 360 degrees in any 4-sided polygon
53 + 53 + x + x = 360
2x + 106 = 360
2x = 254
x = 127
 
        
                    
             
        
        
        
Answer:
1st problem: b) 
2nd problem:  c) 
Step-by-step explanation:
1st problem:
The formula/equation you want to use is:

where 
t=number of years
A=amount he will owe in t years
P=principal (initial amount)
r=rate
n=number of times the interest is compounded per year t.
We are given:
P=2500
r=12%=.12
n=12 (since there are 12 months in a year and the interest is being compounded per month)

Time to clean up the inside of the ( ).


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2nd Problem:
Compounded continuously problems use base as e.

P is still the principal
r is still the rate
t is still the number of years
A is still the amount.
You are given:
P=2500
r=12%=.12
Let's plug that information in:
 .
.
 
        
             
        
        
        
1: -4/1
2: 1/2
3: 1/4
4: -4/1
I hope those r the correct answers
        
             
        
        
        
36:20            18:10
--------    =     --------      = 9:5
    2                  2
        
                    
             
        
        
        
Answer:
(10/100)*94.9 = 9.49
Step-by-step explanation:
Divide by 100 and multiply by 100-5.1 = 9.49