A sporting goods store added 50% profit cost and 8% tax to the price of a backpack, which
then became $129.60. What was the price of
the backpack before adding profit and tax?

p q⋅ = ×− =− 32 6 .

Explanation:

A

y mx b = + Slope-Intercept Form

1

3 y xb = +

1

3 m =

1 1 (6) 3

−= + b (6, 1) − is on the graph.

− = 3 b

Thus equation of the line that has slope 1

3

and

contains the point (6, 1) − is 1 3

3 y x = − .

The slope of the second line is 0 1

1 0

−

− , or −1 .

The equation of the second line is

y x − =− − 1 1( 0) , or y x =− +1.

Substitute − +x 1 for y in the equation

1 3

3 y x = − .

1 1 3

3

−+= − x x ⇒

4 1 3

3 = −x ⇒

4 4

3 = x

⇒ 3 = x

Substitute 3 for x in the equation y x =− +1,

to solve for y . So, y =− + =− (3) 1 2 .

The point of intersection is (3, 2) − .

Therefore, p = 3 and q = −2, so

p q⋅ = ×− =− 32 6 .

basically anything for school but for getting t=into clubs or doing any legal things well it actually depends on what legal thing your doing but definitely not for drinking or going to the club or other things like that.