An mp3 player costs $80. a student has a coupon for 1 4 off. the student saves $7 per week. assuming the price of the mp3 player does not change, how long will it take the student to save enough to buy it?

Since the student earns 7$ a week, after his 9th week, he would have enough to buy the mp3 player.

Your answer is 9 weeks.

P.S. Brainliest would really help im one away from virtuoso

11

step-by-step explanation:

32.50-7.50=25

225/25=11

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2