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What is the value of x if ?

(A) 17

(B) –17

(C) 29

(D) –29

(E) Cannot be determined from the information given.

Gregor works as a political intern and receives a monthly paycheck. He spends 20% of his paycheck on rent and deposits the remainder into a savings account. If his deposit is $3,200, how much does he receive as his monthly pay?

(A) $4,000 (B) $5,760 (C) $7,200 (D) $8,000 (E) $17,000

Correct Answer: A

A carpet company uses the following formula for estimating the number of square feet, a, of carpeting needed for a room x feet by y feet, containing a stairway w feet by z feet, with n stairs: a = xy + w[z(2n - 1) + 2n] What is the company's estimate for the number of square feet of carpeting needed for a room that is 15 feet by 18 feet, containing a stairway that is 6 feet by 6 feet with 8 stairs?

（A）826 （B） 894 （C） 906 （D） 1,086 （E） 1,636

Correct Answer: C

If you multiply a number by 3 and then add 40, the result is the same as if you first add 17 and then multiply by 2. What is the result if you subtract 9 from the number and then multiply by 4?

(A) –60(B) –72(C) –84(D) –108(E) –124

Correct Answer: A