Plz solve

'H. Related Rates \\ . (Section 15) ., l. A block ofice (V = x3 change of an edge). Find how fast the volume is changing when the sides are 10 inches. ) is melting at a rate 0f3 in/min. (This is the rate of Hint: Figure out the equation based on shape. Take the derivative with respect to time. Plug in. 2. The top of a ladder is slipping down a 'ictionless wall at a rate of 2 ft/sec. If the ladder is 20 ft long and the top of the ladder is 8 ft from the oor, nd how fast the bottom of the ladder is moving. Hint: #2 and #3 are triangular problems, use Pythagorean theorem. 3. A person is watching a weather balloon rise into the air 100 ft away (horizontal distance). If the balloon is rising vertically at a rate of 10 ft/sec, nd how fast the balloon is moving away from the person when it is 70 feet in the air. 3 4. A weather balloon is being inflated at a rate of 153. Find how fast the min radius is changing when r =2.5 it