What is the best way to describo |-22 B с D + - 3 + 1 2 3 -2 -1 0 the opposite of 2 the distanco botwoon A and D the distance between A and C point A​

2-digit numbers less than 91 which are 1 less than a multiple of 10

Ineed the solution to this problem and the steps.

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2