Find the degree of the following polynomial and determine whether it is a monomial, binomial, trinomial, or none of these -2n^4-5n-10

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?