PLEASE HELP ASAP IT WILL BE DEEPLY APRECIATED AND NO LINKS PLEASE Intersecting lines will have how many solutions? What about parallel lines? Overlapping lines?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

Darragh has a golden eagle coin in his collection with a mass of 13.551\,\text{g}13.551g. an uncirculated golden eagle coin has a mass of 13.714\,\text{g}13.714g.