Answer:
Step-by-step explanation:
w= 1
/4 or w= −1/
2
The discount is $2.60. $6.50 + $2.60 = $9.10. $9.10 is the original price.
Answer:

Step-by-step explanation:

(2 spreadsheets, 3 databases and 4 presentations,


As not mentioned other wise equal chances of all the outcomes is assumed so, by the classical definition of probability,
P(The chosen item is a odd numbered database)
=
Suppose the line is y=mx+b
when x=3, y=15, so 15=3m+b
when x=-1, y=-13, so -13=-m+b
solve the system of these two equation, you get m=7, b=-6
so the linear equation is y=7x-6