A mixture of purple paint contains 6 teaspoons of red paint and 15 teaspoons of blue paint. To make the same shade of purple paint using 25 teaspoons of blue paint, how much red paint would you need?

Volume of cylinder with a radius of 8cm and height of 25 cm

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.