James has x merit points. Sarah has three times as many merit points than James.

Robert has 61 fewer merit points than James.

Each merit point is worth 3 pence.

All three of the students have a total of £15.72

Work out how many merit points each student has.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

What is the 12th term of b(n)=-4-2(n-1)

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice