Answer:

Step-by-step explanation:
Hello!
We can first factor out the greatest common factor between the coefficients: 3.
Now, let's work with what we have inside the brackets.
Standard form of a quadratic: 
Given our equation: 
We need to find two numbers that add up to b (13) and multiply to ac (-30).
The two numbers are 15 and -2. Expand 13x to 15x and -2x and factor by grouping.
<h3>
Factor by Grouping</h3>
Now, we simply add the other factor, 3, to the final factored form.
Factored Solution: 
Answer:
Wait there is no exercise 1-5 number line maybe its like this? 1-2-3-4-5
^2
Step-by-step explanation:
Tony's dorm is 7.5 miles far from the library.
Step-by-step explanation:
Given points are;
(4,0) and (12,6)

Using point distance formula;
Distance = 

One unit represents 0.75 miles, therefore,
10 units = 0.75*10 = 7.5 miles
Tony's dorm is 7.5 miles far from the library.
Keywords: distance, multiplication
Learn more about multiplication at:
#LearnwithBrainly
The answer is B. strong negative
Do you see how the dots in the graph are close enough together so that you are able to see a line going downward? That’s how you know the association in this graph is negative.
If the y values decrease as the x values increase, you know that the line/association of points is negative.
If the y values increase as the x values increase, you know that the line/association of points is positive.
When the points are scattered all over the graph and you can’t see any kind of line or pattern, there is no association.
Hope this helped! If you have any questions about what I mentioned here, feel free to comment!