A candidate has budgeted $8,100 to spend on radio and television advertising. A radio ad costs $162 per 30-second spot and a television ad costs $900 per 30-second spot. How many radio and television spots can the candidate purchase without exceeding the budget? Express your answer as a linear inequality with appropriate nonnegative restrictions and draw its graph.
Let x be the number of radio spots and let y be the number of television spots. Choose the correct answer below.
A. 162x + 900y > 8,100, x ≥ 0, y ≥ 0
B. 162x + 900y < 8,100, x ≥ 0, y ≥ 0
C. 162x + 900y ≥ 8,100, x ≥ 0, y ≥ 0
D. 162x + 900y ≤ 8,100, x ≥ 0, y ≥ 0