Lines b and c are parallel. what is the measure of angle 6?

∠6 = 54°

Step-by-step explanation:

Since b and c are parallel lines, then

∠8 = 13x + 9 ( alternate exterior angle ) and

∠6 = 5x + 9 ( vertical angles )

∠6 and ∠8 form a straight angle and are supplementary, thus

13x + 9 + 5x + 9 = 180, that is

18x + 18 = 180 ( subtract 18 from both sides )

18x = 162 ( divide both sides by 18 )

x = 9

Hence

∠6 = 5x + 9 = (5 × 9) + 9 = 45 + 9 = 54°

5y

step-by-step explanation:

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.