| 661 |
AMC 8 2011 A Q19 |
How many rectangles are in this figure?
[asy]
p... |
1515.26 |
| 662 |
AMC 8 2012 A Q19 |
In a jar of red, green, and blue marbles, all but ... |
1515.26 |
| 663 |
AMC 10 2000 A Q17 |
Boris has an incredible coin changing machine. Whe... |
1515.26 |
| 664 |
AMC 10 2002 B Q12 |
For which of the following values of \( k\) does t... |
1515.26 |
| 665 |
AMC 10 2002 B Q2 |
The sum of eleven consecutive integers is \(2002\)... |
1515.26 |
| 666 |
AMC 10 2003 B Q8 |
The second and fourth terms of a geometric sequenc... |
1515.26 |
| 667 |
AMC 10 2003 B Q23 |
A regular octagon \( ABCDEFGH\) has an area of one... |
1515.26 |
| 668 |
AMC 10 2004 B Q20 |
In \( \triangle ABC\) points \( D\) and \( E\) lie... |
1515.26 |
| 669 |
AMC 10 2009 A Q6 |
A circle of radius \( 2\) is inscribed in a semici... |
1515.26 |
| 670 |
AMC 10 2011 A Q17 |
In the eight-term sequence \(A,B,C,D,E,F,G,H\), th... |
1515.26 |
| 671 |
AMC 12 2021 Fall A Q8 |
Let \(M\) be the least common multiple of all the ... |
1515.26 |
| 672 |
AMC 12 2001 A Q9 |
Let \( f\) be a function satisfying \( f(xy) = f(x... |
1515.26 |
| 673 |
AMC 12 2018 B Q8 |
Line segment \(\overline{AB}\) is a diameter of a ... |
1515.26 |
| 674 |
AMC 12 2014 A Q23 |
The fraction \[\dfrac1{99^2}=0.\overline{b_{n-1}b_... |
1515.26 |
| 675 |
AMC 12 2003 B Q9 |
Let \( f\) be a linear function for which \( f(6)-... |
1515.26 |
| 676 |
AMC 12 2002 A Q13 |
Two different positive numbers \( a\) and \( b\) e... |
1515.26 |
| 677 |
AMC 12 1998 A Q20 |
Three cards, each with a positive integer written ... |
1515.26 |
| 678 |
AMC 12 1997 A Q19 |
A circle with center \( O\) is tangent to the coor... |
1515.26 |
| 679 |
AMC 12 1993 A Q5 |
Last year a bicycle cost \(\$160\) and a cycling h... |
1515.26 |
| 680 |
AMC 12 1993 A Q26 |
Find the largest positive value attained by the fu... |
1515.26 |