Answer:
20×10=200mm
70:200
70/10=7
200/10=20
7:20 is your answer in it's simplest form
Answer:
The third option, a rational number
like 1/5 + 2.5 is still rational (but neither irrational nor whole/an integer)
it would be 0.2 + 2.5 = 2.7 btw
or
1/5 + 5/2
= 2/10 + 25/10
= 27/10
Answer:

Step-by-step explanation:
Add up all the sides to get the perimeter:

355, and any greater number that's less than 365, can.
the mean is adding all them together and dividing by how many there are
2+3+5+6+1+10 = 27
there are 6 numbers so 27/6 = 4.5
mean = 4.5