Mathematics

Frodo

30 October, 02:52

Gretta has 40 raffle tickets to sell. She is required to sell at least 15 tickets. She sells the raffle tickets for $10 each.

The amount of money Gretta makes from selling x raffle tickets is represented by a function.

f (x) = 10x

What is the practical range of the function?

a. All integers from 15 to 40, inclusive.

b. All multiples of 10 between 0 and 400, inclusive.

c. All real numbers.

d. All multiples of 10 between 150 and 400, inclusive.