exam Maths Puzzle Numerical Ability

How do you solve d/d+4=d-2/d

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Solve the inequality and graph it.
3 -5x >/ 18
-1/2x + 7 < 5 + x
Solve and graph.
-3 >/ 5-2x/-7
Graph the following.
3x -2 < 1
Graph the following compound inequality a) solve equation y = -16t + (v*t*sin(theta))+ h for t in terms of y, v, h, and theta.
b) use result from a) to calculate t when h=3, v=25, and theta=0,5,10,...,60
c) as theta