If the variance of a dataset is 0 then all entries in the dataset must equal 0 true or false

False

Step-by-step explanation:

Recall that variance describes how far a data set is spread out. In order for the variance of a dataset to be 0, then all the data points would need to be the same so that there's no difference between them (for example {5,5,5,5} has 0 variance).

If the variance in a dataset is 0 it means that all the numbers are all the same and they don't have to equal 0. So false

Step-by-step explanation:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

ok then what happened.