The marked price of an item is Rs.1500 and 10% discount is given to make 20% profit. By what percent is the discount to be increased to get only 12% profit

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Match each function with its rate of growth or decay

Can someone me with the property questions for 12 13 and 14 plz