A(1,3,5, 7,9}, b {0,1,2,3,4,5,6, 7,8,9} be the universal set and let a (0,2,4,6,8}, and c {2,3,5,7}. list the elements of the following sets 1.) let u (a) an b (b) c\b (c) au (bnc)

a)

b)

c)

Step-by-step explanation:

We have the following universal set

We also have these following sets:

a)

is the set of elements that belong to both A and B.

B is the universal set, so:

b)

is the set with all elements that belong to C and do not belong to B.

B is the universal set, so:

c)

Because of parenthesis, takes precedence.

In a), I explained the operation.

B is the universal set, so:

Now we have

is the set formed by the elements that belong to at least one of A or C.

So:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)