Tim is opening up a bookstore, where he sells both new and old books. he charges $11.50 for a new book, and $4.50 for an old book. what was tim's revenue last month if he sold 15 new books and 12 old ?

Data was collected on myrtle beach for 11 consecutive days. each day the temperature and number of visitors was noted. the scatter plot below represents this data. how many people visited the beach when the temperature was 84 degrees?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?