a local service organization is wrapping gifts at the mall to raise money for charity. yesterday they wrapped 30 small gifts and 12 large gifts, earning a total of 258. today, they wrapped 30 small gifts and 20 large gifts, and earned 330. how much did they charge to wrap the small gifts​

Factor and solve to find roots x squared -x - 90 =0

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?

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.