Find the slope of a line parallel to each given line y=-9x 4

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone. which are equivalent equations?

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"