My sister gave me $12 for my birthday. I now have 3 times as much as I did before. How much money did I have originally?

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

no because mercury has a density of 13.6 grams per centimeter squared while gold has 19.32 grams centimeter squared

step-by-step explanation:

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions