Step-by-step explanation:
the explanation is above
Take key note of the dots bcz some are coloured and some aren't
By using distributive property you can distribute (XYZ)4 and get a simplified answer of 4(x)+ 4(y) + 4 (z). The parenthesis show that 4(xyz) is not simplified and could also be written as 4(x)+ 4(y) + 4 (z).
You are not giving enough information but in one of the calsses the average of student's height might be greater than the other class beacause one of the two classes needs to have 1 extra person than the other calss
There both types of numbers but a whole number is a number with no exponents or decimals, but decimals are like a broken un half whole number
