512 actors are in the ratio men : women : children = 7 : 11 : 14.

(a(i)) Show that there are 224 children. [2]

(a(ii)) Find the number of men. [1]

(b) Each child is given \$1 every working day and works for 45 days. Find the total given to the children, to the nearest \$100. [2]

(c) Children have lessons in groups of no more than 12. Find the smallest number of groups. [2]

The film costs four million and ninety three thousand dollars.

(d(i)) Write this number in figures. [1]

(d(ii)) Write it in standard form. [1]

(e) A DVD costs \$2.75 to make and sells for \$8.20. Find the percentage profit. [3]