What does a quadratic expression look like?

Apair of ordinary dice is rolled. what is the probability that each die will show a number higher than 4. 1. (1/36) 2. (1/12) 3. (1/6) 4. (1/4) 5. (1/3)

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys