Johnny says that rolling a number cube twice and getting a 6 both times is an example of dependent events because getting a 6 on the second roll depends on getting a 6 on the first roll. Is he correct? Explain.

Which statement best describes the polynomial

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Plz hurry evaluate the expression a+b where a=8 and b=19