A store that sells video games gives a 15% discount for customers who trade in a used game. Alex brought a game to trade and bought a game that cost $29.99. How much did he save?

the correct answer is 5 6 and 7

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step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft