Class A has 13 pupils and class B has 29 pupils. Both classes sit the same maths test.
The mean score for class A is 31.
The mean score for class B is 61.
What is the mean score (rounded to 2 DP) in the maths test across both classes?

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

Zahra was given two data sets, one without an outlier and one with an outlier. data without an outlier: 15, 19, 22, 26, 29 data with an outlier: 15, 19, 22, 26, 29, 81

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online