A cafe sells lattes for $2.50 and shots of espresso for $1.75. On Thursday, a total of 63 lattes and espresso shots were sold, and the cafe collected a total of $138.75 from latte and espresso sales.
Let a represent the number of lattes and y represent the number of espresso shots. Write the ordered pair, (x, y), that
represents the situation.

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.