Plz giving brainiest
modeling with mathematics the linear function m=55-8.5b represents the amount m (in dollars) of money that you have after buying b books.

1. find the domain of the function.
a.)0, 1, 2, 3, 4, 5, 6$

.5,-2.5,-3.5,-4.5,-6.5,-7.5,-8.5

c.)all real numbers greater than $0$

d.)all whole numbers less than $100$

2.
is the domain discrete or continuous? explain.

the domain is because the amount of must be a number.

discrete or continuous books or money decimal or whole number