elders are treasure house of knowledge and experience paragraph within 200 to250 words​

Define temperature coefficient??​

B. Due to on-going Corona virus outbreak, Wellness Medical store has started selling masks of decent quality. The store is selling two types of masks currently type A and type B.The cost of type Amask is Rs. 15 and of type B mask is Rs. 20. In the month of April, 2020, the store sold 100 masks for total sales of Rs. 1650.26. How many masks of each type were sold in the month of April?(a) 40 masks of type A, and 60 masks of type B(b) 60 masks of type A, and 40 masks of type B(c) 70 masks of type A, and 30 masks of type B(d) 30 masks of type A, and 70 masks of type B27. If the store had sold 50 masks of each type, whatwould be its sales in the month of April?(a) Rs. 550 (b) Rs. 560 (c) Rs. 1050 (d) Rs. 175028. Due to great demand and short supply, the store has increased the price of each type by Rs. 5 from May 1, 2020. In the month of May, 2020, the store sold 310 masks for total sales of Rs. 6875. How many masks of each type were sold in the month of May?(a) 175 masks of type A, and 135 masks of type B(b) 200 masks of type A, and 110 masks of type B(c) 110 masks of type A, and 200 masks of type B(d) 135 masks of type A, and 175 masks of type B29. What percent of masks of each type sale was increased in the month of May, compared with the sale of month April?(a) 110 % in type A and 180 % in type B(b) 180 % in type A and 110 % in type B(c) 350 % in type A and 150 % in type B(d) 150 % in type A and 350 % in type B30. What extra profit did store earn by increasing price in May month.(a) Rs 1550 (b) Rs 3100(c) Rs 1650 (d) Rs 1825​​

Silver nitrate solution reacts with calcium chloride solution according to the equation: 2AgNO3 + CaCl2 → Ca(NO3)2 + 2AgCl All of the substances involved in this reaction are soluble in water except silver chloride, AgCl, which forms a solid (precipitate) at the bottom of the flask. Suppose we mix together a solution containing 9.45 g of AgNO3 and one containing 6.30 g of CaCl2. What mass of AgCl is formed?

A person slips when he/she steps on a banana peel accidentally. give reasons