exam Maths Puzzle Numerical Ability

Fet f(x)= x squared-1 and g(x)=1-2x. Find the indicated values.

f(g(1)) and g(f(1))

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exam Other Question

Graph the following equation: y= -1/4x

thanks for any help jim is now three times as old as kathy.
Four years ago, jim was seven times as old as kathy then.
find their present ages.

PLEASE HELP ME SOLVE THIS!

and can you show work!