Barbara buys 3 boxes of eggs costing £1.20 each
1 jar of mayonnaise costing £1.80
2 loaves of bread

she pays with a £10 note and gets £1.60 change
Barbara works out the cost of 1 loaf bread as £1.40

is she correct? why? you must show your working

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.