exam Maths Puzzle Numerical Ability

I need some help. Can someone help me, please?

f+8/f-1 divided by 6f+48/f-2

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exam Other Question

If the perimeter of a rectangle is 24 ft and the width is 7 ft, find its length. [Hint: The perimeter of a rectangle is given by P = 2L + 2W.] i need to find the Foci of 25x2+16y2+150x=160y-225
the 2 that is next to 25x and 16y is supposed to be squared but i didn't no how to do it. thanks for you help.