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• solve the system of equations. 2.5y + 3x = 27 5x – 2.5y = 5 what equation is the result of adding the two equations? what is the solution to the system?
  
• which element best helps the audience create a mental image to make a speech more memorable
  
• read the prompt for alina’s paper. write an informative essay explaining the evolution of communication technology, from the invention of the telephone to the modern use of communication devices. the best way for alina to gather evidence to develop her paper is to research the different models of current communications devices. communications devices available over the last century. inventors of the various types of communication technology. pros and cons of video-conferencing communication technology.
  
• the citizens of the united states live and work in a closed economy. command economy. mixed market economy. pure market economy.
  
• besides urination, the other methods for fluid loss from the body are __________. a. perspiration and respiration b. transpiration and respiration c. perspiration and dilation d. dilation and exhalation
  
• what factors have a link to deviance in reckless and dinitz’s containment theory?
  
• sharks and whales look similar, but they’re different types of animals. whales are mammals, while sharks are fish. which body part do sharks have that whales lack?
  
• a solid right pyramid has a regular hexagonal base with an area of 5.2 cm2 and a height of h cm. which expression represents the volume of the pyramid? (5.2)h cm3 (5.2)h cm3 (5.2)h cm3 (5.2)h cm3
  
• in the overall equation for photosynthesis, six molecules of carbon dioxide and six molecules of water result in a molecule of sugar and six molecules of
  
• which interaction involves only one of earth’s spheres? plant roots take in water from the soil. plants take in carbon dioxide from the air. during photosynthesis, plants make food and release oxygen into the air. energy stored in plants is transferred to humans and animals that eat them.