1 ) Billy walks 15 miles every day to soccer practice and he had 5 practices last week.
We know that, 1 mile = 1760 yards
So, 15 miles = (15× 1760) yards = 26400 yards
Thus the total distance walked in 5 practices will be: 
2) Mark's current age is
years
So, his age was in 10 years ago 
Given that, his current age is 3 times his age 10 years ago.
So, the equation to represent this situation will be : 
Ya I like the first one better than the second one but both are good
Answer:
r=-7
Step-by-step explanation:
Answer: -2
Step-by-step explanation: The y-intercept of a line is the point where the graph crosses or intersects the y-axis.
In this case, the line crosses the y-axis 2 units down from the
origin and we can write the coordinates of the point as (0, -2).
So the answer is -2.
This is the formula for slope between two points:


so...


4
The slope is 4
Hope this helped!