Answer:

1.A11 = 36

2.A24 = 85

Step-by-step explanation:

1. A11 = A1 + (n-1)d

= 6 + (11-1)(3)

= 6 + (10)(3)

= 6 + 30

= 36

2. A24 = 16 + (24-1)(3)

= 16 + (23)(3)

= 16 + 69

= 85