Associative Property of Multiplication
Because the grouping is the only things that changes
Answer:
300=initial time and 0.05 is the amount of time shaved off of the initial time to run the marathon
Step-by-step explanation:
Answer:4.5 x 2
Step-by-step explanation:
4.5 x 2 = 9
Hope it helps
Answer:
Ok, the solution to the first one. See below.
Step-by-step explanation:

See attachment below.
Best Regards!
The answer’s c, y=5/2x+10