Answer:
The independent would be the 15 tickets and the dependent would be the t-shirt
Step-by-step explanation:
It takes only 2 years
because
31,006,000 x 1.2% = 6,201,200
so,
31, 006, 000 + 6,201,200 = 37, 207, 200
37, 207, 200 + 6,201,200 = 43, 408, 400
7n-13=5n+7
7n-5n=7+13
2n=20
n=20/2
n=10
