A shopkeeper wants to sell a shirt originally priced at $120. Which deal will result in the greatest savings on the shirt?
А
20% off
B
$30 coupon
с
15% off with a $15 rebate
D
10% off with a $20 rebate

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

a ≈ 172.05

step-by-step explanation:

the pictures.