4. Zach took a science test. He answered 42 questions correctly and 8 questions incorrectly. What percentage of the questions did Zach answer correctly?
A. 26%
B. 42%
C. 50%
D. 84%

Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).