#Algebraic Expression

(a) A telephone company charges initially Rs. 0.50 and then Rs. 0.11 for every minute. Write an expression that gives the cost of a call that lasts N minutes. (b) Find the missing number in the series below: (i) 1, 8, 4, 27, 9, ? (ii) 3, 6, 8, 16, 18, ? (iii) 2, 8, 512, ? (iv) 81, 9, 64, 8, ?, 12 (v) 6, 11, 21, 36, 56, ? (c) The perimeter of the rectangle given below is 114 cm. Find the area of the rectangle. (Top side (3x-y) cm, bottom side (2x+y) cm, right side (2x-3) cm.) (d) Ahmad stands at point D, 2 m in front of a spotlight at point A. He is 1.6 m tall and is facing the wall of a building which is 10.5 m away from him. How tall (BC) is his shadow on the wall of the building?

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