1.calculate the following in the given bases a)66+9t9+48 (base twelve)
b)5117 -324 (base 8)
c)242 x14 (base 5)
d) 101010 / 111(base 2)
2.convert the following Bicimals to base 10
a)11.1
b) 10.0001
c)1101 x 11
d)101 101/101
3. if z=(1,2,3,4,5,,10),A=(1,2,5,7),B=(1, 3,6,7) write down the sets A',B' (A ∪ B) or(A ∩ B)

4.Represent the information below on Venn diagram.
In a class of 36 student 29 do math and 20 do chemistry. if 5 students do neither how many do chemistry but not math

(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.