STAAR Reference
Materials
A pre-image is dilated by a scale factor of
Pre-image
2 in.
Image
1 in.
2 in.
4 in.
Which of the following is true?
R
The image's area is 2 times the pre-image's area.
B
The image's area is the pre-image's area.
Y The image's area is the pre-image's area.
G The image's area is 4 times the pre-image's area.

The floor plan of a room has a scale of 2.5 in.: 35 ft. in the drawing, the length of the room is 8 in. and the width of the room is 6 in. what is the perimeter of the actual room?

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Consider an example of a deck of 52 cards: example set of 52 playing cards: 13 of each suit clubs, diamonds, hearts, and spades ace 2 3 4 5 6 7 8 9 10 jack queen king clubs diamonds hearts spades what is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.