Hello! So, for the first inequality, we have to add 10 to both sides. When you do that, 3.5x > 7. Then, you have to divide both sides by 3.5. When you do that, you get x > 2. Then, for the second inequality, you have to add 9 to both sides, then you would get 8x < 48. Divide both sides by 8 and you get x < 6. The compound inequality for this question would be 2 < x < 6.
The formula is (y2-y1)/(x2-x1)
Plug in the values. Be careful two minuses become plus
(-7+4)/(3+6)=-3/9= -1/3
Your Y-intercept would be at -2 and the x-intercept would be at 1/7. So plot the coordinates (0,-2) and (

,0)
Here is your answer
Let the widht of rectangle be x metres
Then, its length= x+2 metres
Perimeter= 2 (l+b)
=> 34 = 2 (x+2 + x)
=> 34/2 = 2x+2
=> 17= 2x+2
=> 2x= 17-2
=> x = 15/2 metres
Width= 15/2 metres
Length= 15/2 + 2
= 19/2 metres
HOPE IT IS USEFUL