How do you find the solutions to a system of equations involving quadratic
functions and other functions?

Please help I’ve been doing this for hours!!!

Q1) jin loves carrot yesterday she ate ½ of here carrots and today she ate 2/3 of the remaining carrots. she then discover that she has 12 carrots left. yesterday she must has started with carrots? a)36 b)48 c)60 d)72

What is the range? can’t seem to find it out

For what value of (y) is 3^3/3^y =1/9