Construct the image of quadrilateral PQRS under an enlargement scale factor -2 center of enlargement O. (3 marks)

The sum of 3 133 792, 5 293 476, 7 672 598 and 4 257 348 is rounded off to the nearest 10,000. Find the difference between the actual sum and the rounded figure.     (3 marks)

Determine the quartile deviation for the following set of numbers. 6 , 1 , 7 , 6 , 2 , 4 , 5 , 9 , 4 , 8 , 7          (3 marks)

Joan bought three cups and four spoons for sh. 648. Fridah bought five cups and Halima bought two spoons of the same type as those bought by Joan. Fridah paid sh. 456 more than Halima. Find the price of each cup and each spoon.      (3 marks)

The towns X and Y are on the same latitude south of the equator. The longitude of X is 120⁰W and the longitude of Y is 143⁰E. the shortest distance between X and Y measured along the parallel of latitude is 5068 nautical miles. Find the latitude on which X and Y lie. (4 marks)

If  P =    and Q =    Given that PQ is a singular matrix. Find the value of x. (4 marks)

The figure below shows an equilateral triangle of radius 8 cm. calculate the length of the side of the triangle.               (2 marks)

The sum of four consecutive even integers is greater than 248. Determine the first four such integers.                      (3 marks)

The ratio of the interior angle to that of the exterior angle of a regular polygon is 7:2. Find the number of sides of the polygon.                 (3 marks)

Cheluget gets a commission of 2.4% on sales up to sh. 200,000. He gets an additional commission of 1.2% on sales above this. Calculate the commission he gets on sales worth sh. 380,000.                          (3 marks)