i. Mount Apo, the highest elevation in the Philippines, stands at 2,954 meters above sea level. Taal Volcano, the lowest elevation, is 311 meters above sea level. What is the difference between these two elevations? j. The melting points of mercury, nitrogen, lithium, and sulfur are -39C, -210C, 181C, and 113C, respectively. What is the difference between the melting point of lithium and nitrogen? k. The temperature fell 15F over a three-hour period. If the decrease was spread equally over the three hours, how much did the temperature change in an hour? 1. Denver has a budget of PhP 1600 for his weekly grocery. The table below shows his grocery list with its corresponding prices. Grocery List Price/Kg 2 kg beef PhP 258 2 kg pork cubes PhP 174 2 kg chicken fillet PhP 143 1 kg red onions PhP 80 1 kg garlic PhP 170 10 kg rice PhP 44 2 dozens egg PhP 108/dozen Will his budget be enough to buy what's on his list? Justify your answer. Provide a suggestion if needed. Perform the indicated operations. a. -86 +57 + (-32) b. (-4)+ 48-2 c. 16+ (13) + 10+2 3 d. 9+6+(8-2) - e. 6(6+2+7) f. 7-9-7-3.5+2 g. 44 (4-(108)) h. 10+ (2+1)+(-9)-8 i.-(4-1+8+8-2) 2+3