Class A has 29 pupils and class B has 22 pupils. Both classes sit the same maths test.
The mean score for class A is 57.
The mean score for both classes is 61.
What is the mean score (rounded to 2 DP) in the maths test for class B?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Someone answer this asap for the function f(x) and g(x) are both quadratic functions. f(x) = x² + 2x + 5 g(x) = x² + 2x - 1 which statement best describes the graph of g(x) compared to the graph of f(x)? a. the graph of g(x) is the graph of f(x) shifted down 1 units. b. the graph of g(x) is the graph of f(x) shifted down 6 units. c. the graph of g(x) is the graph of f(x) shifted to the right 1 unit. d. the graph of g(x) is the graph of f(x) shifted tothe right 6 units.