Hello, Helena!

There's some information missing.

I'll take aat what it is.guess

For $600, at dollars each, we can buy: . anoraks.The cost of an anorak rose by $6.

As a result, a shop could buy five fewer anoraks for $600.

If the cost of the anorak was dollars before the rise,

find expressions, in terms of , for the number of anoraks

which could be bought before and after the rise.

For $600, at dollars each, we can buy: . anoraks.

Hence, form an equation in

and show how it reduces to:

. .

Multiply by

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . .

. . . . . . Divide by 5: .