Sam and Dean are brothers. Their ages now add up to the age of their sister. In ten years, Dean’s age will be the sum of
their ages today. How old are each of them?

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!

answer: i don't understand. what are the options

step-by-step explanation:

addition

step-by-step explanation:

i think its a and d

step-by-step explanation: