A country's postal code consists of six characters. The characters in the odd positions are uppercase letters while the characters in the even positions are digits (0 to 9) how many postal codes are available in this country? please help

What is the missing constant term in the perfect square that starts with x^2 -20x

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?