Leslie is driving 850 miles home from vacation. She drives a constant speed of 65 miles per hour. She wants to stop for the night when she is no more than 300 miles from home. How many hours will she need to drive?

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.

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

I'm confused on this could anyone me and show me what i need to do to solve it.