The following equation represents Madison's disposable income after expenditures: Money Leftover=a−b−c, where Income=a,
Needs=b,
and Wants=c.
Her income is $2700
per month. She spends $1150
on rent, car insurance, food, electricity, and phone payments. In addition, she spends $680
on concert tickets.

I think it is $870

Step-by-step explanation:

You would replace the equation a-b-c

a=$2700 b=$1150 c=$680

2700-1150-680= $870

$680

Step-by-step explanation:

The amount $680 that she spends on concert tickets represents her wants.

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

−−−−−−  

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

)

=

$

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

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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step-by-step explanation: