Starbucks sells coffee for $3.50 per cup. a group of 8 people order drinks.

what's the function

what's the domain

what's the range

See below

Step-by-step explanation:

If we know that each coffe is sold for $3.50, the function can be written using the following form:

Where Y=amount of money earned, and X=number of coffes ordered.

The domain are the possible values for X. In this case, the domain can be written as: , as we know that eight people have bought coffe, and the function exists only when the number x is positive (as there can't be a negative number of coffes ordered), from 0 to 8.  

The range are the possible numbers for Y. In this case, if 8 coffes are ordered, then the maxium value of Y is:

So the range can be written as:

step-by-step explanation:

the answer is 128