<p>pg 747 #15.</p>
<p>Thanks!!</p>
<p>I also need pg 775 #3 and 4, pg 775 #7, pg 779 #15, pg 792 #6, og 794 #12 and 14, and pg 804 #6.</p>
<p>747 #15
First find the cost of the sweater for the store to buy the sweater.
which is 20 dollars
now 30% off that is $14.
so 28(original cost)-14 = $14... B</p>
<p>794 #14
-60 = 2(t^3-3)
solve for t.... basic algebra u get t=-3
2-3(-3) = 11 B</p>
<p>804 #6 =
A) -2k
B) 4k
C) out of question
D) 8k
E) out of question</p>
<p>eliminate the ones with an odd power.
so we get D.</p>
<p>794 #12
directly prop means x/y = k
so 1/4 divide 1/8 is k. and so k is 2.
so x / (9/2) = 2. yo x is 9</p>
<p>775 #3...
x = k^2 - 2k
so x+1 is..</p>
<p>k^2-2k + 1... .C.</p>
<p>775 #4.
multiplying 2 to the slope basically makes the thing larger
graph 2x+3 and 4x+3 and compare.... so its B</p>
<p>Did i miss any? anyways I didn't look at the answers so please tell me If i missed something..</p>