6 Kay sees a jacket in New York costing $170. She knows the same jacket costs £132 in London. Using the exchange rate £1 = $1.30, work out in which place the jacket is cheaper and by how much. Show all stages of your working out.

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.