Kelly is making a chart to show her parents that the number of minutes she spoke on her cell phone decreased over the last 5 months. which set shows her cell phone minutes decreasing?
a.
{756.58, 1259, 2009.03, 2920, 3452.63}
b.
{3452.63, 2920, 2009.03, 1259, 756.58}
c.
{756.58, 3452.63, 2920, 2009.03, 1259}
d.
{1259, 2009.03, 2920, 3452.63, 756.58}

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

related questions

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation: