What’s the smallest number you can make using the digits 9,7,5 and 4.

Which matrix multiplication is possible?

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?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if