thanks for the fact, that was really helpful !!!
The commutative property of multiplication.
Answer:
C
Step-by-step explanation:
hope I'm right sorry if I'm not lol.
0.00067=67X10^5 so
67X10^5-2.3X10^5
64.7X10^5 which can be expressed as:
6.47X10^6
(not sure if it matters to you or not, but technically we only had two significant figures so it should be rounded to 6.5X10^6)
Answer:
Step-by-step explanation:

b.
an=an-1+3
C.
when x=15
y=3×15-2=45-2=43
a15=43