Me asap which expression is equievelent

Write the sentence as an equation. b increased by 281 is d

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)

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle