exam Maths Puzzle Numerical Ability

Factor completely. x^2 – 3x – 18 I got (x – 3)(x + 6) is that correct

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exam Other Question

A family traveling due west on a road that passes a famous landmark. At a given time the bearing to the landmark is N 62 W, and after the faimily travels 5 miles further the beari solve the inequality 7<4x+3<=21, and express the solution as an interval.

i get x= 1, 4.5

7<4x+3<=21
-3 from middle equation
making it 4<4x<=18
factor out the 4
1<x<4.5