exam Maths Puzzle Numerical Ability

find the equation of the line through(-5,8)and parallel to the line 4x+y=8

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exam Other Question

A bus traveled 2 hours at a certain speed, then decreased the speed by 20 miles/hr and traveled for 3 more hours. If the total distance traveled is estimated between 250 miles and 330 miles, find the range of the initial speed of the bus. Graph: (a) y=2 (b) y=2x

The book has the answer at y = 3/5X+26/3

I can not get this answer no matter how I graph it. It is like some of the problem is missing.