How do you write the number 6.31 × 106 in standard form? A.
631,000
B.
631,000,000
C.
6,310,000
D.
63,100.0000000000

C: 6,310,000

Step-by-step explanation:

move the dot to the right 6 places and add 0s to the empty spots making 6.31 turn into 6,310,000

hope this helps

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.