Question

kc

Answer 1

Using the categories shown in the inequalities in the problem, which weight category does the 2 pound 9 ounce parcel fall into?

Answer 2

2 pounds 9 ounces is = (2 x 16 ounces per pound) + 9 ounces = 32 + 9 = 41 ounces. This is "w". So it falls into the 2nd category, 21.05.

Answer 3

Does that make sense? You just need to convert pounds and ounces into ounces, and then see which inequality range it falls in.

Answer 4

The way the problem is written, C(w) is the cost in dollars to mail a package weighing "w" in ounces. Your "w" is 41 ounces, so your C(w) cost is the answer that goes with the category that includes weights from 32 to 48 ounces.

Yes, your last comment is correct.