Answer:
p= 7 socks
Step-by-step explanation:
gift card:$25
socks:$4
p = 7
Take $190 and multiply it by 0.15 (28.5) and subtract that from $190= $161.50
For this case we have the following equation:

Where,
w: The weight of a spring in pounds
E: the energy stored by the spring in joules.
Substituting values we have:

Making the corresponding calculation:
Answer:
the approximate weight of the spring in pounds is:
That is where the line crosses the x axis or where y=0
set y=0
Bx=A
find x value
divie both sides by B
x=A/B
the x intercept is x=A/B