Patricia can buy individual songs for $1.00 to download. Also, an entire album costs $10.00 to download. She can spend no more than a total of $80. She wants to buy no more than four albums, and at least 30 individual songs.

The following system of inequalities represents this situation, where x is the number of individual songs and y is the number of albums.

x + 10y ≤ 80
x ≥ 30
y ≤ 4

Which blue-shaded region corresponds to Patricia’s possible choices?