Plz help me with 9 and 10 im giveing 10 points to who ever helps me, and hurry plz QUICK

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

Use your knowledge of the binary number system to write each binary number as a decimal number. a) 1001 base 2= base 10 b) 1101 base 2 = base 10

Bag a contains 3 white marveled and 2 marbles bag b contains 6 white marbles and 3 red marbles a person draws one marbles from each bag find the probability that both marbles are white