The Spring Valley PTA plans a day at the amusement park for the elementary school.
The rides at the park are classified as A rides and more expensive B rides.
The PTA can obtain discounts by purchasing books of tickets.
The MiniPacket contains eight A tickets and two B tickets and costs $19.
The MidPacket contains seven A tickets and seven B tickets and costs $30.
The MaxiPacket contains six A tickets and 14 B tickets and costs $45.
The PTA needs to purchase a total of 260 A tickets and 175 B tickets.
Find the number of each packet that should be purchased to minimize costs.