The answer is not "When volume is increased and the number of particles is constant" its actually "When volume is increased and the number of particles is increased"
£9.90 Per hour * 6 hrs = £59.4
Answer:
Bren=5 years
Tom=7yrs
Sally=4 yrs
Kate=8years
Step-by-step explanation:
-Let Bren's current age be x, therefore Tom is x+2
-Let Sally's current age be y, therefore Kate is 2y
-Also, given that:

#We calculate the ages one year ago of Tom and Sally:

#Substitute for x in i;

Answer: 30% of 500 is 150.
80x by 80x up and down and 64y by 64y left and right