What is a sales promotion

Sales promotion is a marketing strategy where the product is promoted using short-term attractive initiatives to stimulate its demand and increase its sales.

This strategy is usually brought to use in the following cases  

to introduce new products,

sell out existing inventories,

attract more customers, and

to lift sales temporarily.

start by isolating the variable on one side by adding 43w^2 to both sides.   the equation will read:

25w^2+5=0

*subtract 5 from both sides*

25w^2=-5

*divide both sides by 25*

w^2=-1/5

*take the square root of both sides*

w=√(-1/5)

the square root of -1 is i.   the square root of 5 remains √5

the answer is i/√5.

hope this

answer'; i believe the correct answer is (15,000) workers a year are treated for injuries caused by jacks, lifts or jack stands;