The student government at the local middle school surveyed students to plan the end-of-year party. for the first sample, they surveyed every other person at sports practice after school. for the second sample, they surveyed every fifth person entering the cafeteria where all students eat. which statement about the samples is true? end-of-year party survey sample 1 sample 2 water park 21 water park 36 bowling/arcade 36 bowling/arcade 28 zoo 16 zoo 24 dance & dinner 27 dance & dinner 12 sample 1 is biased. sample 2 is biased. both samples are biased. neither sample is biased.

Find solution of the linear equation y = 2/3x + 1/3

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _

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.