2. rhonda started a business. her business made $30,000 in profits the first year. her annual profits have increased by an average of 5% each year since then. (a) write an explicit rule to model the sequence formed by the profits of rhonda’s business each year. use the formula an=a1(r)n-1 . (hint: increase means to add 1 to your %) (b) use the rule to determine what the annual profits of rhonda’s business can be predicted to be 15 years from the start of her business. round your answer to the nearest dollar. do not round until the end. show your work.

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.