\documentclass[12pt]{article} \begin{document} \begin{enumerate} \item A lattice point is a point that has integer coordinates. Thus, $(-7,41)$ is a lattice point on $35x+72y=2707$. Find a lattice point in the 1st quadrant that lies on this line. \item Determine the length from $O$ to $P$ as the minimum length along the grid lines from $O$ to $P$. In the diagram, the path length from $O$ to $P$ is 7. Find the number of different points $P$ with integer coordinates that have a path length from $O$ of 37. \item If the whole number $60k$ has 60 factors, find the smallest value for $k$. \item For all $x$ and $y$, given that $2^x={16y \over 3}$ and $3^x = 27y$. \item Compute all real solutions to the equation $$\sqrt{x^2-x-12} - \sqrt{x^2-6x+8} = \sqrt{x-4}.$$ \item There are four unequal, positive integers $a$, $b$, $c$, and $N$ such that $N=5a+3b+5c$. It is also true that $N=4a+5b+4c$ and $N$ is between 131 and 150. Find the value of $a+b+c$. \item In the diagram (not provided here), angle $P$ has a measure of 15 degrees. Points $Q$, $R$, $S$, $T$, \ldots, alternate from one side of the angle to the other, each located farther away from point $P$ than the point before. If $PQ=QR=RS=\cdots$, then find the maximum number of isosceles triangles with equal sides that can be formed. \item The digits 1, 2, 3, 4 can be arranged to form twenty-four different four-digit numbers. If these 24 numbers are listed from smallest to largest, in what position is 3142? \item Compute the product $xyz$ if $x$, $y$, and $z$ are real and $$\matrix{x&+&y&+&z&=&6\cr x^2&+&y^2&+&z^2&=&14\cr x^2& & &+&z^2&=&10}$$ \item Consider the integers that are between 250 and 300 and that do not have a zero as a digit. How many of these integers have three digits whose product is a perfect square? \item In triangle $ABC$, $AC=3$, $BC=4$, and $AB=5$. A circle with center on side $AC$ is tangent to sides $AB$ and $BC$. Find the area of the circle. \item Trapezoid $ABCD$ is inscribed in a circle with diameter $AB$. Triangle $ABC$ has area 150 and triangle $ACD$ has area 120. Find length $BC$. \end{enumerate} \end{document}