In a​ film, an actor played an elderly uncle character is criticized for marrying a woman when he is 3 times her age. He wittily​ replies, "Ah, but in 19 years time I shall only be twice her​ age." How old are the uncle and the​ woman?

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll