PLEASE HELP ME!!! PLEASE CORRECT ME IF I AM WRONG FOR THE FIRST ONE AND PLEASE DO THE SECOND ONE TOO!! THANK YOU!! :)

Answer:
A = (a+b)/2
G = sqrt(ab)
Step-by-step explanation:
To find the arithmetic mean, we add the numbers together, then divide by how many numbers
A = (a+b)/2
To find the geometric mean, we multiply the numbers and take the nth root
G = (ab) ^ 1/2
G = sqrt(ab)