im in honors comupter science and one of my questions is evaluate 18% 7 does anyone know how to answer that

Before you enter an intersection on a green light make sure

Solve the following javafx application: write a javafx application that analyzes a word. the user would type the word in a text field, and the application provides three buttons for the following: - one button, when clicked, displays the length of the word.- another button, when clicked, displays the number of vowels in the word.- another button, when clicked, displays the number of uppercase letters in the word(use the gridpane or hbox and vbox to organize the gui controls).

How do you take a green screen out of the video while editing?