Answer:
A. Positive
Step-by-step explanation:
They ask us about the relationship between reading and grades.
First you have to go to the first part of the statement that says:
"Dr. Yancy conducted a correlation study in which she found that the more time children in her study read at home the better they performed in school"
In this case they tell us that there is a positive correlation, that the more you read the better your performance in school is.
Performance is your grades, and home study can be reading, so the score is positive in the second half, too.
Answer:
Lines that cross one another.
Step-by-step explanation:
100+0=100
(100)14 you put 100 14 times in the calculator and that’s the answer.
Answer: (a)
Step-by-step explanation:
Given
The points are
and 
The distance between two points
is given by

Apply the distance formula

Hence, option (a) is correct.