Question

The Lelands use milk from their goats to make handcrafted goat-milk soap. They made 150 bars to sell at an upcoming street fair, with a net profit of $3 per bar sold. The function P(b) represents the family's net profit, in dollars, after selling b bars of soap at the street fair.
What is the range of P(b)?
all whole numbers between 150 and 450
all multiples of 3 less than or equal to 450
all multiples of 3 less than or equal to 150
all whole numbers less than or equal to 150

Answer 1

P(b) = 3b, where b can be any whole number from 0 to 150. So P(b) can be 0, 3, 6, …, 450 — all multiples of 3 less than or equal to 450.