$40\degree$

$50\degree$

$130\degree$

$150\degree$

$40\degree$

$50\degree$

$130\degree$

$150\degree$

$A=40\degree$

$A=50\degree$

$B=130\degree$

$B=40\degree$

$B=90\degree$

ANGLE A = 53.6

ANGLE A = 12.7

ANGLE B = 53.6

ANGLE B = 72.1

ANGLE B = 40.9

The car’s fuel efficiency increases by about 2.8 mpg each year.

The car’s fuel efficiency decreases by about 2.8 mpg each year.

The car started with about 2.8 mpg when it was new.

The car’s fuel efficiency decreases by exactly 2.8 mpg every year.

The car’s fuel efficiency increases by about 40 mpg each year.

The car’s fuel efficiency decreases by about 40 mpg each year.

The car started with about 40 mpg when it was new.

The car’s fuel efficiency decreases by exactly 40 mpg every year.

The stock cost about $12.42 before the data starts.

The stock price increased by exactly $12.42 each month.

The stock price increased by about $12.42 each month.

The stock’s price decreased by about $12.42 each month.

The stock cost about $5 before the data starts.

The stock price increased by exactly $5 each month.

The stock price increased by about $5 each month.

The stock’s price decreased by about $5 each month.