\f2. An electronics store sells till-GB digital music players for $229 and Eli-GB players for 5329. Last month* the store sold 125 of the tin-GB players and ID of the Elli-GB players. a] Represent the total revenue from sales of the players using the dot product. b} Find the total revenue in part a}. 3. A parallelogram has area 35 square cm. The side lengths are It] cm and 9 cm. Ilitihat are the measures of the interior angles? 4. Use the cross product to determine the angle between the vectors 3?: [4. 5. 2] and H = ["2. E. 1]. Verify it using the dot product. 5. A force, F = [3, 5, 12], in newtons, is applied to lift a box, with displacement, S = [2, 1, 6] in metres. Calculate the work against gravity and compare it to the work in the direction of travel