What makes a regression line a good fit for the data in a scatter plot and how can we tell from the residual plot?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15