The graph of y = x² and y = x intersect at which of these points

The diagonal of a rhombus WXYZ intersect at M if and , calculate the perimeter

In the diagram, $PQ\parallel RS$. Find x in terms of y and z

Express 0.612 in the form $\tfrac{x}{y}$, where x and y are integers and y ≠0 

M and N are two subset of the universal sets (U). if n(U) =48, n(M) = 20, n(N) =30 and $n(M\cup N)=40$, find $n(M\cap N)'$

Find the mean deviation of 20, 30, 25, 40 35, 50, 45, 40, 20 and 45

If  $x:y=\tfrac{1}{4}:\tfrac{3}{8}$and $y:z=\tfrac{1}{3}:\tfrac{4}{9}$, find x : z

In the diagram PQ is a straight line (m + n) = 110^o, (n + r) =130^o and (m + r ) =120^o. Find the ratio of m : n : r

Donation during the launching of church project were in sealed enveloped . The table show the distribution of the amount of money in the envelope

Find the inter-quartile range of 1, 3, 4, 5, 8, 9 10, 11, 12, 14 16