A charity obtains its income from various sources. The table below shows these sources. and the corresponding

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A charity obtains its income from various sources. The table below shows these sources. and the corresponding amounts of income for 1993. (C) Source Income () Advertising 30 000 Donations x Fees 9 000 Investments Sponsorship 3.000 10 000 A pie chart was drawn to illustrate the data. Given that the angle of the sector representing Donations was 204, calculate

(a) the total income for 1993,

(b) the value of x,

(c) the angle of each of the remaining sectors. A second pie chart was drawn to compare the corresponding 1996 data with that of 1993. In 1996 the income from Sponsorship had increased to 28 800 and this was represented by a sector of angle 60 in the pie chart for 1996. Given that the radius of the 1996 pie chart was 9 cm, calculate the radius of the 1993 pie chart. (C)

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