a$)$ Let's consider an economy consisting of three people $-$ Rahim, Karim, and Kamal. The table below shows their individual supply. Derive the market supply curve.

$\backslash$table$[[$Rahim$,$Karim,Kamal$],[$Price $($$$),$Quantity $($kg$),$Price $($$$),$Quantity $($kg$),$Price $($$$),$Quantity $($kg$)],[5,5,5,10,5,10],[10,10,10,15,10,15]]$

b$)$ What would be the probable impacts on equilibrium quantity and price for the following events? $($Hints: Draw an initial equilibrium of each market and then show changes in the market outcome$-$ equilibrium price and quantity due to the following events$)$

I. Increasing the cost of rice production$-$ show the impact on the rice market.

I. Decreasing the government subsidy on the cotton industry$-$ show the impact on the cloth market.