The bar graph in the following graphic represents fictional net exports in billions of dollars for five countries. Net exports are obtained by subtracting total imports from total exports; a negative net export means the country imported more goods than it exported. A horizontal bar graph titled Net Exports (Billions of dollars) has net exports (billions of dollars) on the x-axis, from negative 150 to positive 150 in increments of 60, and country on the y-axis. Spain, 20; Germany, 40; China, 120; Denmark, negative 30; United States, negative 110. What is the difference between the net exports from The United States and Denmark ? a. 70 billion dollars c. 90 billion dollars b. 80 billion dollars d. -140 billion dollars

Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.