If you bike for 3 hours at 10 mph and then walk for 1 hour at 2 mph, what would be your average speed? show work.

i know this question is easy but i can't figure it out.

The product of two negative rational numbers is always zero sometimes zero never zero

The least common denominator of 4/8 and 11/18

Amy is plan her school's new basketball court. the west edge of the basketball court is located on the line y = 5x + 2. the east edge cannot intersect with the west edge. on which line could the east edge be located? −y − 5x = 100 y + 5x = 100 −5x − y = 50 5x − y = 50