A biologist counted 5 squirrels in 2 acres of forest. Based on that data, how many squirrels would be expected to inhabit a 250-acre forest?

If the value of cos330°is√3/2 then find cos 165°.

Pls never taught i’m really confused and i rlly need

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?