Avery wants to put a variety of muffins in a display case. the case is large enough to hold 60 muffins. types of muffins blueberry 40%, pumpkin 20%, cranberry 30% what is the number of muffins in case

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

452,489 to the nearest thousand is 452,000