How did rockefeller and the standard oil company get around laws that forbade companies in one state from underselling or doing business in other states?

in a trust, one company controls the stock of several other companies.

in a trust, a board of trustees controls the stock of several companies.

in a trust, trustees assign their stock to separate companies.

in a trust, one company assigns its stock to another company.

Rockefeller and the Standard Oil Company got around laws that forbid companies in one state from underselling or doing business in other states because they developed the idea of creating trusts. His Standard Oil Company was so big and production so high that he could underbid the competitors.

Explanation:

A.  0.0004 
b.  0.61

in a, you can get the answer by multiplying 0.02, which is the probability that the bus will arrive early, and 2, which is the number of days. so 2(0.02) is 0.0004, which is the probability that the bus will arrive early for the next two days.

in b, you can get the answer by subtracting 0.19, which is the probability that the bus will be late, and 0.02, which is the probability that the bus will be early, from 1 which is the sum of all probabilities. so 1-(0.02+0.19) is 0.61, which is the probability that the bus will arrive on time.