Is A the correct over plz help

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters

What are the domain and range of f(x)= -log5(x+2)