1. a scale drawing of a patio is shown at right. the scale is
4 inches : 6.8 feet. what are the length and width of the
patio? find the patio's area.
length:
width:
area:

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

What is the range for 31,39,29,34,37,24,36,33,34,28