When a = 5:20a 15 = 20(5) 1520a 15 = 100 1520a * 15 = 1500
When a = 4:20a 15 = 20(4) 1520a 15 = 80 1520a * 15 = 1200
Therefore, when a = 5, the answer is 1500 and when a = 4, the answer is 1200.
When a = 5:
20a 15 = 20(5) 15
20a 15 = 100 15
20a * 15 = 1500
When a = 4:
20a 15 = 20(4) 15
20a 15 = 80 15
20a * 15 = 1200
Therefore, when a = 5, the answer is 1500 and when a = 4, the answer is 1200.