Peggy was taking a timed 60-question test. she was able to correctly answer 90% of the questions but had to skip the rest. how many questions did peggy answer correctly ?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Which is f(5) for the function –2x2 + 2x - 3?

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?