Answer:
A
Step-by-step explanation:
if only one packet was used, then only 24 seeds are going to be sprouted
Check the picture below, so the parabola looks more or less like so.
the vertex is always half-way between the focus point and the directrix, and since the parabola is opening downwards, the "p" distance is negative.
Simplify 1/2p to p/2
subtract 15 from both sides
multiply both sides by 2
regroup terms
switch sides
Answer: p = 2(q - 15)