11 The floor plan of this house has been drawn
to a scale 1:120. Find:
a the external
dimensions of the
house including
verandah

There is no association.

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho