Answer:

Step-by-step explanation:
If y varies directly as x, then we can write the relation

where k is the constant of proportionality.
We substitute y=-319 when x=29.

This implies that:


The variation equation now becomes

The answer is 10............
Answer:
D $9.56
Step-by-step explanation:
13 * .7 * 1.05 = 9.555
$9.56
Answer:
c
Step-by-step explanation: