Suppose a local pizzeria produces pizzas with a demand elasticity of -0.4. If it lowers the price of pizzas, total revenue would . Choose one: A. decrease B. increase C. You cannot tell with the given information.

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

Does heating a metal wire increase or decrease its electrical resistance? why?

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.