a fair cube has 2 red sides, 2 blue sides, and 2 green sides what is the probability of rolling red or blue

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Corresponding angles are a. always b. sometimes c. never congruent