Brad buys a video game desk for four dollars there was a discount of 20% off what is the sale price

$3.20

Step-by-step explanation:

The total amount is $4 for the video game desk.

100% = $4

10% = $0.40

20% = $0.40 + $0.40 = $0.80

Therefor the the sale price after the 20% discount is:

$4.00 - $0.80 = $3.20

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i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer