Days: 1, 2 , 3 , 4 Cost to rent a truck: 34, 56, 78, 100

Answers to pick from:
1. C=22d+12
2. C=22d
3. C=22d+22
4. C=12d+22

Can someone please help me get the right answer

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

1. what is the measure of ∠abc? what is the measure of ∠abd?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?