One day an e-mail is sent to 7 people. That day, each person who receives the e-mail, sends it to two friend. Each friend who receives the e-mail sends it to two more people on the following day. Write an expression to determine the number of people who receive the e-mail on day n, if the pattern continues. How many people receive the e-mail on the 5th day? ?​

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

Cameron indoor stadium at duke university is one of the most revered sites in all of college basketball, as well as in all of sports period. duke’s men’s and women’s basketball programs have attained quite a few wins in the building over the last seventy years. cameron indoor stadium is capable of seating 9,460 people. for each game, the amount of money that the duke blue devils’ athletic program brings in as revenue is a function of the number of people in attendance. if each ticket costs $45.50, find the domain and range of this function.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.