The price of a train ticket consists of an initial fee plus a constant fee per stop. The table compares the number of stops and the price of a ticket in dollars. What is the fee per stop

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.