Calculate the cost effective for these items : 500g pack of cake flour costs R25, 95
100g pack of unsalted butter R5, 75
50ml bottle of vanilla extract R22, 50(1 teaspoon =2,5ml)​

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Is the figure congruent? yes or no?

Acone is placed inside a cylinder. the cone has half the radius of the cylinder, but the height of each figure is the same. the cone is tilted at an angle so its peak touches the edge of the cylinder’s base. what is the volume of the space remaining in the cylinder after the cone is placed inside it?