can someone explain how to answer #7

Classwork for Advanced Function X Slader Math Homework Answers X S Slader Premium : Homework Hel X + X C a classroom.google.com/u/0/w/MjMWODc4MDk1NTcO/t/all Paused . . . iv) year 8 to year 13 36 F PDF MHF4U Textbook Chapter 01 (1).pdf d) When was the best time to buy share Open with .. . 32 sell shares? Justify your answers. 7. As a large snowball 28 Reasoning and Proving melts, its size changes. Representing Selecting Tools 24 The volume, V, in Problem Solving Height (m) cubic centimetres, is 20 Connecting Reflecting given by the equation Communicating 16 V = #nr', where r is the radius, in centimetres, 12 and r E [0, 30]. The surface area, S, in square centimetres, is given by the equation S = 4mr. a) What type of polynomial function does each A formula represent? Sketch a graph of each function. State the domain and range. 0 8 12 16 20 24 28 d b) Determine the average rate of change of the Distance (m) surface area and of the volume as the radius a) Determine an equation for the parabola in decreases from the design. i) 30 cm to 25 cm ii) 25 cm to 20 cm b) What type of line does each crossbeam Compare the change in surface area to the represent? change in volume. Describe any similarities