The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) below. Commute Time (minutes), x 5 20 30 35 60 84 105 Well-Being Index Score, y 69.3 68.1 67.3 67.2 66.0 65.6 64.0 a) Find the least-squares regression line treating the commute time, x, as the explanatory variable and the index score, y, as the response variable.

What type of animal might be preserved in a tar pit

Vera is on her school's track and field team. in a practice long-jump competition against her teammates, she gets 5 points for landing over the farther line. she gets a total of 7 jumps and lands x times over the farther line and the rest of the times over the closer line. which of the following functions represents vera's total score? a. f(x)=10x b. f(x)=5x+35 c. f(x)=10x+5 d. f(x)=70-5x

Did the universe cool off or get hotter as it expanded after the 'big bang"?