Use each student's quiz score to answer the questions.
Annika's quíz scores
60%, 75%, 78%, 80%, 85%, 85%, 90%
Josiah's quíz scores
62%, 85%, 68%, 79%,83%, 90%,92%
Annika has a mean that is
mean,
Josiah's median is
Annika's median
The range is
Who has the lowest interquartile range?

What Answers do you need ?

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: