What does y equal?
0.5y-4=y-0.8

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

I’m really confused and need your assist me with this question i’ve never been taught

C. using a standard deck of 52 cards, the probability of selecting a 4 of diamonds or a 4 of hearts is an example of a mutually exclusive event. true of false