$3.48 with 8% tax would be 28 cents
In a store, perhaps. People want it to be easy to shop, so it would be best for say, a top ramen package to be the same net weight as all the other top ramen packages. This makes it 1) easy to label and 2) easy to be confident buying, as it is exactly the same as all the others.
5040, I looked up the factorial of 7
<2=40° <11=60°
Because <1 was 140°, 2 is 40°. 40°+80°=120°
180°-120°=60°
X-3=66
x=69
69+41+(y-9)=180
110+y-9=180
101+y=180
y=79
