Who knows and can help me with this I’ll mark u as brainliest

C

Step-by-step explanation:

The rule for a function is every input has one output. In other words, one input (also known as a domain or x-value) cannot be pointing to two different outputs (also known as ranges or y-values).  Also, every output must have at least one input. The only option that adheres to these rules is C.

the answer to your question a or b but i am pretty sure it is b. i hope this : )

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: