Answer:
C
Step-by-step explanation:

Use the rational root theorem:

=16,

=1
The dividers of

: 1,2,4,8,16
The dividers of

: 1
Therefore, check the following rational numbers: +-


is a root of the expression, so factor out x-4
Compute

to get the rest of the equation.

Cancel the common factor:

is the final answer
Answer:
$0.29
Step-by-step explanation:
Multiply the unit weight ($0.24/ounce) by the weight (1.2 oz.):
$0.24 1.2 oz
.24 * 1.2 = $0.288
So, the rounded answer will be $0.29