Who watches buffy the vampire slayer??

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?