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