Jim has 10 used books and 12 used DVD's to sell at a garage sale for $1.50 and $5.00 each respectively.

Let x be the number of books and y be the number of DVD's Jim ends up selling.

Which of the following systems of linear inequalities represents this situation if Jim wants to make at least $40.00?

a.)
x ≥ 10
y ≥ 12
1.5x + 5y ≥ 40

b.)
x ≤ 10
y ≤ 12
1.5x + 5y ≥ 40

c.)
x ≥ 1.5
y ≥ 5
10x + 12y ≥ 40

d.)
x ≤ 1.5
y ≤ 5
10x + 12y ≥ 40