Suppose there are 3 red balls, 4 blue balls, and 5 black balls. what? s the minimum number of balls you have to draw to ensure you have at least one ball in every color?

What's the difference between: x≥0 and nonnegative integer. ?

How many grams must be adde to 970g to make 1 and a half kg

To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet