A company gives each worker a cash bonus every Friday, randomly giving a worker an amount with these probabilities: $10 0.9, $50 0.1. Over many weeks, what is a worker's expected weekly bonus?

In the northern hemisphere what is the direction of the surface wind circulation in a high pressure system

Is the universal urge to strive for perfection in order to overcome feelings of inferiority. a. pleasure principle b. striving for superiority c. collective unconscious d. reality principle

Which statements describe continental crust? select the three correct answers. a-it is formed in all parts of the continents. b-it is made mostly of volcanic rock. c-it is destroyed by melting near the top of the mantle. d-it is less than 10 km thick. e-its ages ranges from very young to more than 4 billion years old.