4. Based on the following chart, convert 84.3 km to mi. (2 marks) 1 ft = 12 in 1 yd = 3 ft 1 mi = 1760 yd 1 in = 2.54 cm 1 mi = 1.609 km 1 yd = 0.9144 m 1 ft = 30.48 cm 5. In a triangle labelled HARE, at = 911", :1 = ~11", and :16 = 27.3 cm. Calculate the length of BC. (3 marks) 6. In a triangle labelled Lib'iz', at: = 911\Show all steps clearly to receive full credit for your solutions. 1. Convert 723.8 mm to cm. (2 marks} 2. Calculate the volume of a rectangular prism with a width of 5 cm, a length of 7' cm, and a height of2 cm. {2 marks) 3. Calculate the surface area of a box with a width of 6 mm, a length of 5 mm, and a height of 7 mm. {2 marks) 7. In a non-rightangled triangle labelled dPQl-B, 1.\" = 1291-", Alt = 32'\Task 2: Thinking (25 marks) Show all steps clearly to receive full credit for your solutions. 10.Using the formula C = mt, calculate the diameter of a circle with a circumference of 12.4 cm. (2 marks) 11 .A cereal box is designed to hold a volume of 4096 cubic centimetres of cereal. What dimensions will minimize the cost of producing the box? (2 marks) 12.The average age of a university student was found to be 24 with a standard deviation of 2. What age group is within 2 standard deviations of the mean? {3 marks) 13.Given the following set of numbers, use the measures of central tendency to identify the type of distribution. Defend your answer. (4 marks) 70 67 75 60 67 65