Some one asap i will give you lots of points and brainliest, but show work, or explain .

Question 16 - RS, because chords are lines in the circle that is connected in two points of the circle.

Question 17 - RT, because a diameter is a chord that has the center point of the circle.

Question 18 - RT, it is not a radius

Question 19 - 19, diameter is double of a radius. 9.5 x 2 = 19

Question 20 - minor arc; 50°. Minor arc because it only has two labels (letters). If three label like arc ABC, then it is considered major. To get 50°, first calculate the angle Q. 180 - 100 = 80°. Next, add 80 and 50 together because they are part of the semicircle which was formed by DB. 80 + 50 = 130°. Use the total degrees of a semicircle (180) and subtract it by 130°.

180 - 130 = 50°

Question 21 - minor arc; 80°. Again, a semicircle, which is formed by AC, has a total angle of 180. So subtract 180 by 100 to get 80°.

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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