Asquare has sides of length s. a rectangle is 6 inches shorter than the square and one inch longer. what expression represents the perimeter of the rectangle?

Write 17/20 as a decimal and as a percent.

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.

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36