AB is parallel to XY. The lines AY and BX intersect at P.
AB= 6 cm.
XP = 12.5 cm.
XY= 15 cm.
12,5 cm
15 cm
Work out the length of BP.
6 cm
(3 marks)

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.