2X+2+4=8
2X+6=8
-6 -6
_________
2X=2
_____
2 2
X=1
Step-by-step explanation:
a) 3km=20 minutes
times both side by 3 as 20x3 is 60mins equal 1 hour
so 3kmx3 is 9km
b) 3km is 20 mins
times both side by 6 as 20x6 is 120 mins which is equivalent to 2 hours
therefore, 3kmx6 is 18km
c) the assumption is that the longer you run means that youll jog more further so more fitness
Step-by-step explanation:



Answer:
c
Step-by-step explanation:
Using Pascal's triangle, the expansion, although EXTREMELY lengthy, will help you find the 7th term. I am going to type out the expansion only up til the 7th term (although there are actually 10 terms because we are raised to the power of 9). If you would like to learn how to use Pascal's Triangle for binomial expansion, you will need to visit a good website that explains it because it's just too difficult to do it via this website.
The expasion is as follows (up to the 7th term):

That last term is the 7th term. You find out its value by multiplying all the numbers together and adding on the c^3d^6. Again those come from Pascal's triangle, and it's one of the coolest math things ever. I encourage you to take the time to explore how it works.
Hey I would try to use Socratic or photomath they are apps