1. For each situation, explain why data are collected from a sample and not a census. c) Rita researched accident statistics in her community. She learned that, in the past year,
30 people were injured in car accidents and 10 people were injured in motorcycle
accidents. Rita inferred, “It is safer to ride a motorcycle than it is to drive a car.”
Is Rita’s inference valid? Explain.

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

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: