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# 3) A telephone call costs $1.25 for the first minute and  post reply Question banks Downloads My Bookmarks Reviews Important topics Author Message Director Joined: 27 Jun 2008 Posts: 543 WE 1: Investment Banking - 6yrs Followers: 2 Kudos [?]: 64 [0], given: 92 3) A telephone call costs$1.25 for the first minute and [#permalink]

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29 Sep 2008, 06:22
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3) A telephone call costs $1.25 for the first minute and$0.32 for each additional minute. What is the cost, in dollars, of a telephone call that lasts for x minutes, where x is an integer?
(A) 0.32+ 1.25x
(B) 1.25+ 0.32x
(C) 0.32+ 1.25(x - 1)
(D) 1.25+ 0.32(x + 1)
(E) 1.25 + 0.32(x - 1)

4) The markup on a television set is 20 percent of the cost. The markup is what percent of the selling price?
(markup = selling price - cost)

(A) 8%
(B) 10%
(C) 12.5%
(D) 15%
(E) 16 2/3%
Intern
Joined: 31 Jan 2008
Posts: 9
Followers: 0

Kudos [?]: 0 [0], given: 0

Re: PS - Q 3 & 4 [#permalink]

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29 Sep 2008, 07:37
X is the toal dollars of the tele call,