Maths Questions Help!!

<p>i've got 2 questions that are really driving me insane i just would like if anyone could help me through them</p>

<p>246810121416182022.........</p>

<ul>
<li>The number above is formed by writing down, in increasing order, the consecutive even integers from 2 to 98, inclusive. What id the 40th digit in the number ?
a.0
b.2
c.3
d.4
e.7</li>
</ul>

<p>Why is the answer d??</p>

<ul>
<li>What is the range of f(x)= 3x2<--(squared)-5x+3, if f(x) is defined for
-1<x<4 and x is an integer?
a.1<f(x)<31
b.3<f(x)<31
c.11<f(x)<31
d.1<f(x)<11
e.3<f(x)<11</li>
</ul>

<p>Why is the answer a??</p>

<ul>
<li>i've got another one but u gotta visualize</li>
</ul>

<p>If the area of a circle is 36 and ABCD is a square inscribed in the circle a line cuts the square in half and forms issosles triangles what is the area of one of the triangles?
a.12
b.18
c.6pie
d.12pie
e.36 divided by pie
the answer is e</p>

<p>i appreciate ur feedback :)
please help!!</p>