Answer:
2/3
Step-by-step explanation:
The slope of the line can be calculated by dividing the vertical distance (rise) by the horizontal distance (run) between the two points.
The first point has coordinates (-1,0), and the second point has coordinates (2,2).
The rise is 2-0=2, and the run is 2-(-1)=3. Therefore, the slope is 2/3.
Answer: So our equation is 
Laura does:

while Sean does:

So sean sums four times the number 2/3, while Laura sums two times the number 4/3, this is because we are working with a multiplication, and the order of the factors does not alter the product.
The two are splitting the equations in different ways.
He will need 2 more months to reach up 7 centimeters.
4 cm are long and 1.5 cm grows per month.
in 2 moths her hair will grow 3 inches=4+3=7
2x≤7
where x=1.5 cm
For mph my answer was number 3 and for hpm its 2