I could use help with this asap

Which of the following are arithmetic sequences? check all that apply. a. 0.3, 0.6, 0.9, 1.2, 1.5, b. 2, 3, 6, 11, 18, c. 150, 147, 144, 142, d. 2, 4, 9, 16, 25,

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1