A fair coin is flipped 10 times. What is the probability of obtaining exactly 8 heads when a fair coin is flipped 10 times

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b