\frac{2m^2-4m}{9m^2-4} simplify it

One integer is 8 times another. if the product is 72, then find the integers

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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.