An image of a book shown on a website is 1.5 inches wide and 3 inches tall on a computer monitor. The actual book is 9 inches wide.

1. What scale is being used for the image?
2. How tall is the actual book?

These triangles are scaled copies of each other.

First of four traingles labeled F. Triangle F has the vertical side labeled 8, the horizontal side labeled 6, and the longest side labeled 10.

Second of four traingles labeled B. Triangle B has the vertical side labeled 2, the horizontal side labeled 3 halves, and the longest side labeled 5 halves.  

Third of four traingles labeled G. Triangle G has the vertical side labeled 4, the horizontal side labeled 3, and the longest side labeled 5.  

Fourth of four traingles labeled H. Triangle H has the vertical side labeled 8 thirds, the horizontal side labeled 2, and the longest side labeled 10 thirds.

For each pair of triangles listed, the area of the second triangle is how many times larger than the area of the first?

1. Triangle G and Triangle F
2. Triangle G and Triangle B
3. Triangle B and Triangle F
4. Triangle F and Triangle H
5. Triangle G and Triangle H
6. Triangle H and Triangle B

Here is an unlabeled rectangle, followed by other quadrilaterals that are labeled. 

Original dimensions are 2 by 4. Figure A has side lengths of 4, diagonal side down 2, left 1, 4, diagonal side up 2, right 1. Figure B has side lengths 8, 3, 8, 3. C has side lengths 6, 3, 6, 3. D has 2, 1, 2, 1. E has 4, 2, 4, 2. F has 7, diagonal side down 3, right 1, 7, and diagonal side left 1, up 3. G has 5, 2, 5, 2. H has 8, 4, 8, 4.

1. Select all quadrilaterals that are scaled copies of the unlabeled rectangle. Explain how you know.
2. On graph paper, draw a different scaled version of the original rectangle.

Here is a map that shows parts of Texas and Oklahoma.

1. About how far is it from Amarillo to Oklahoma City? Explain your reasoning.

2. Driving at a constant speed of 70 miles per hour, will it be possible to make this trip in 3 hours? Explain how you know.