Asock drawer contains 18 blue socks and 10 black socks. if two socks are randomly drawn from the drawer without replacement, what is the probability that two black socks are chosen? (in simplest fraction form)

Which expression is equivalent to 2^4y^3

Consider the function f(x)=-5x+3 what is f(-2)

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?