6. let a = (5,7,8,9) and c =( 6,7,8). then show that (a\b)\c = a(b\c).

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts