What is the definition of a line that is parallel to AB

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

Identify the slope an intercept of the following linear equation y = 1/5x - 6 a. slope: 1/5; intercept: -6 b. slope: 5; intercept: -6 c. slope: -1/5; intercept: 6 d. slope: 1/5; intercept: 6

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be