Answer:
19
or 18
Step-by-step explanation:
First, add the whole numbers
3, 7, and 8
18
Add the fractions
+
=
IF YOU WANT SIMPLIFIED NUMBER DO THIS
=1
18+1
=19
Please write that as 4.321 × 10^(−4). The " ^ " indicates exponentiation and the parentheses help make clear that your exponent here is a negative one.
Rewrite 4.321 × 10^(−4) by moving the decimal point 4 places to the left:
0.0004321
Answer:

Step-by-step explanation:
To find : Convert 110 km/myr (kilometers per million years) to cm/yr (centimeters per year) ?
Solution :
Using metric conversions,
1 kilometer = 1000 meter
1 meter = 100 centimeter
So, 1 kilometer = 100,000 centimeter
and 1 million year = 1,000,000 year


So, 

Therefore, 
It would be B, the second triangle.
Hope this helps.