Cold air transfers heat energy to warm air.
Original price=A
A x 25/100=$31.14
simplify 25/100 = 1/4
A x 1/4=$31.14
A/4=$31.14
multiply both sides by 4
A=$124.56
20% of a = 11
a = 11
a = 11
a = 55
I hope this helps! If you have any questions, feel free to ask.
Oooh I miss these. Haven't done them since kindergarten! 24/25 would equal 0.96. 87+0.96 would get 87.96. 7/10 is 0.7 so 224+0.7=224.7. 49/50 is 0.98, so 0.98+686 is 686.98.
To get the
Mean, you have to add all the ages of the men together:

Next you divide

by the amount of people:
Final Answer: 26