Which property is used to add 19+(11+37)

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases