To determine the cost of shipping a 28-pound parcel by ground, you need to apply three
different per-pound rates: $1.50 for the first pound, $.40 for pounds 2-10, and $.25 for pounds 11-28.
Here's the calculation: $1.50 + ($.40) (9) + ($.25) (18) = $9.60.

A circle's circumference isd-the product of(a bit greaterthan3.1) and the circle's diameter. If
AB and CD were each as large as possible, they would each equal the circle's diameter. Three times this
length is still be less thand.

Multiply Quantity B by $1.20 to determine whether (and by how much) the cost ofp cans
exceeds the cost of a case. ($1.20) (15) = $18.00, which is greater than the cost of a case by
$ .60,lessthan the cost of one can. Accordingly, Quantity A is 15.