A textile production facility produces curtains which are sold in home design stores in their area. Their gross sales in hundreds of dollars, S, is dependent on the number of curtains they produce, x, and can be modeled by the function S(x)=−20+2.5x.   Draw the graph of the gross sales function by plotting its S-intercept and another point.

3 days after picking apples, a family had 100 apples left. After 6 days, 76 apples were left. Assuming a linear function, write an equation in the form a(t) = mt + b that shows the number of apples, a(t), left t days after picking them. Be sure to Include "a(t) =" in your answer.

With aging, body fat increases and muscle mass declines. The graph to the right shows the percent body fat in a group of adult women and men as they age from 25 to 75 years. Age is represented along the x-axis, and percent body fat is represented along the y-axis. For what age does the percent body fat in men reach a maximum? What is the percent body fat for that age? The percent body fat in men reaches a maximum at the age of years. What is the percent body fat at the maximum? % Percent Body Fat Percent Body Fat in Adults 40- 30- 20- 25 Momen 50 Age Men 75 Q Q

An advertising agency has found that when it promotes a new product in a city the weekly rate of change R of the number of people who are aware of the promotion follows a linear pattern. The weekly rate of change R of people who are aware of the promotion x weeks after it is introduced is described by the equation R = 1800-60x. Find the x- and R-intercepts and then graph the function on a viewing window that is meaningful in this application. What is the x-intercept? 30 (Type an integer or a fraction.) What is the R-intercept? 1800 (Type an integer or a fraction.) Choose the most appropriate viewing window boundaries for the function. OA. [0,60] by [1740,1800] OC. [0,1740] by [60,1800] OB. [30,30] by [- 1800,1800] OD. [0,30] by [0,1800]