7 years
First of all, half of 18 is 9, and if you divide 18 by 2.5, it results in 7.2. I hope this helps!
All your answers look good!
Answer:
300%
Step-by-step explanation:
3 difference increase
You put the highest exponent power first, then you go down until you reach a regular number (a number with a variable goes before a normal number)
Ex: 5x^3+2x^2+4x+5
It will equal 1 Kg because 1ml = 1 gram