Find the perimeter and area of a square with a side of 7 feet.

the perimeter of a square = 28 feet.

the area of a square = 49 ft²

Step-by-step explanation:

given:

side length of a square = 7 feet.

find:

perimeter (P) of a square

area (A) of a square

Perimeter of a square = 4s

P = 4(7)

P = 28 feet.

area of a square = s²

A = 7²

A = 49 ft²

therefore,

the perimeter of a square = 28 feet.

the area of a square = 49 ft²

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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