Which of the following is the equation of a line in slope-intercept form for a line with slope = 1/3 and y-intercept at (0,-4)?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate. true or false?