What is the value of n ? please explain step by step

A. 69°

Step-by-step explanation:

The three angles measuring 131, 160 and n are called exterior angles.

Theorem:

The sum of the measures of the exterior angles, one per vertex, of any polygon is 360 deg.

n + 131 + 160 = 360

n + 291 = 360

n = 69

A. 69°

A. 69°

Step-by-step explanation:

The three angles measuring 131, 160 and n are called exterior angles.

Theorem:

The sum of the measures of the exterior angles, one per vertex, of any polygon is 360 deg.

n + 131 + 160 = 360

n + 291 = 360

n = 69

A. 69°

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

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so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

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=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

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$

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=

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14.52

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add

$

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8

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×

$

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$

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