The coach for the Knights basketball team is buying new sneakers for her 12 players. Super Sports is offering a 18% discount on each pair of shoes, which were originally .priced at $74.50. A 6.5% sales tax will be applied to the discounted price. The same sneakers are also available at Double Dribble's website for $55.75. A 9% tax, plus a $5.99 shipping fee will be applied. What is the difference in the total cost of the 12 pairs of sneakers between the two stores?​

the answer is 28

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.