Answer:
Yards are the largest and would require us to measure in much smaller segments than a whole yard. Inches are the smallest and would take a really long time to measure the height. Feet are just the right unit of measurement to use.
B
Step-by-step explanation:
D
Answer: 9 or 8.6
-14a^2b-42ab^2+56abc
You can use the FOIL method
multiply the first numbers
then inner
then outer
then last
