Iforgot how to work this out . me out

z^3

x y^2

Step-by-step explanation:

x^-1 y^-2

z^-3

The negative in the exponent means it goes in the denominator if it is in the numerator and it goes in the numerator if it is in the denominator

z^3

x^1 y^2

but x^1 is the same as x

z^3

x y^2

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88