When simplified, the value of the expression (15 - 11) 2 + 64 squared ÷ 4 is equal to 10 4 24 18

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.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

I’m really confused and need to learn this