Suppose a and b are independent events. if p(a)=0.4 and p(b)=0.9, what is p(a ∩ b) ? answers- a. 36 b. 06 c. 04 d. 54

How do i do this? i don’t understand

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?