exam Maths Puzzle Numerical Ability

In the time it takes to fliy 360 miles with a head wind, she can only fly 240 mies against the headwind. if the speed of the plane in stll air is 150 mph, find the wind speed.

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exam Other Question

y-3/5 - 1 = y-5/4 Find the vertex, the line of symmetry, and the maximum or minimum value of f(x).
f(x)=1/4(x+7)^2+3
Vertex is ? (type an ordered pair)
Line of symmetry is ?
Maximum/minimum value of f(x)
Is the vlue f(-7)=3 a minimum or maximum?