Answer:
part A: 3yx
Part B: (x+y)+z
C: 3xy-6x
Step-by-step explanation:
Commutative property: change the orders in which numbers are multiplied
associative: when all the integers are in addition you can add parentheses wherever u like
distributive: multiply the number just outside the parentheses with the every numbers inside the parentheses
Hope this heps!
39 because 6/3= 2 and 78/39 also = 2
We can see that for every 1 hour he increases 10 miles in his distance, so we can say it's constant, he started at 0 and increased 10 miles per hour.
Alternative C.