Remove all perfect squares from inside the square root.
√72 =

5√2 or 3 and 2

Step-by-step explanation:

You would bring it down for 9 and 8 which would be 72

Then you would get a perfect square of 9 which would be 3

Then you would do 4*2 which would be 8 so you would divide 4 by 2 which would be two which would be another perfect score.

So then you would add them which would be 5 then you get the leftover 2 and make 5√2

But your perfect squares are 3 and 2

i think c. but don't trust it.

step-by-step explanation:

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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