The change machine will change whatever dollars you put into quarters. The only catch is that if you want you use the change machine, it will cost 50 cents. How many quarters will you get back if you put $1, $2,$10, $66?

$1 = 2 quarters

$2 = 6 quarters

$10 = 47 quarters

$66 = 262 quarters

Step-by-step explanation:

$1: First you subtract 50 cents, then there are only 50 cents remaining which is 2 quarters.

$2: First you subtract 50 cents then there are only 150 cents remaining

which is 6 quarters.

$10: First you subtract 50 cents then there are only 950 cents remaining which is 47 quarters.

$66: First you subtract 50 cents then there are only $65.50 remaining which means that there are 262 quarters.  

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!

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation: