a department store purchases a dress for $80. to sell the dress to customers, the price is marked up by 19%. you hand the clerk $110. how much change will you get back?

a. $30.00
b. $15.20
c. $95.20
d. $14.80

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

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