Researchers have surveyed college freshmen every year since 1969. figure
shows that attitudes about some life goals have changed dramatically over the
years. in particular, the freshman class of 2010 was more interested in making
money than the freshmen of 1969 had been. in 1969, 42% of first-year college
students considered "being well-off financially essential or very important. for
the period from 1969 through 2010, this percentage increased by approximately
0.9 each year. if this trend continues, by which year will all college freshme
consider "being well-off financially essential or very important?
life objectives of codege freshmes. 1963-2010
percentage calling objective
"essential" or "very important"

(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.