1.5/4x-1 = 0.4/x+4 find x

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3