Answer:
The relationship is positive.
The model predicts a score of 60.
Not sure what part b is.
Step-by-step explanation:
Since while the money spent on advertising increases while the items sold increases, we have a positive relation between both variables.
By looking at where 30 is on the graph, we can see it lines up with 60,the middle between $40 and $80 on the y axis and so we know this is the cost associated with this value.
Answer:
Option D
Step-by-step explanation:
Let the age of Barbara sister = x years
And the age of Barbara's brother = y years
"Barbara's sister is 7 years younger than Barbara's brother"
x = y - 7
If y = 21,
x = 21 - 7 ------(1)
"Barbara's sister is twice old as Barbara"
x = 2b --------(2)
By substituting the value of x from equation (2) to equation (1),
2b = 21 - 7
2b + 7 = 21 + 7
2b + 7 = 21
Therefore, Option D will be the answer.
Answer:
equilateral
Step-by-step explanation:
5 years as 6500 at a rate of 7% or 455 more dollars a year has to cover a monetary gap of $2275. divide 2275 by 455 and get a nice even 5 years
2^-4 = 0.0625, which as a fraction is 1/16, would appreciate brainliest!