SAT sample questions

Questions of this type have no answer choices provided. Instead, you must solve the problem and fill in your answer on a special grid. Ten questions on the test will be of this type.

1.    |4x - 7| = 5
       |3 - 8x| = 1

What value of x satisfies both of the equations above?

2. Of the 6 courses offered by the music department at her college, Kay must choose exactly 2 of them. How many different combinations of 2 courses are possible for Kay if there are no restrictions on which 2 courses she can choose?