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• a deli sells sliced meat and cheese. one customer purchases 4 pounds of meat and 5 pounds of cheese for a total of $30.50. a sandwich shop owner comes in and purchases 11 pounds of meat and 14 pounds of cheese for $84.50. the system of equations below represents the situation. 4x + 5y = 30.50 11x + 14y = 84.50 the variable x represents the . the variable y represents the . the deli charges $ .
  
• quadrilateral jklm was dilated according to the rule do,(x,y) to create the image quadrilateral j'k'l'm', which is shown on the graph. what are the coordinates of vertex j of the pre-image? (0, -4) (0, -1) (0, 0) (0, 4)
  
• the cold war was a period of history during which the allied powers defeated hitler. the united states and the soviet union fought each other. the united states and the soviet union mistrusted each other. atomic bombs were dropped for the first time.
  
• snapdragons have a pattern of heredity for flower color called incomplete dominance. if the flower-color genotypes are known in a population of snapdragons, you can calculate the allele frequencies for the flower-color alleles r and r’. what are the frequencies of the r and r’ alleles in this population? assume the conditions of hardy-weinberg equilibrium apply. 0.750.500.250.125 genotype frequency allele frequency rr = red = 0.5625 rr’ = pink = 0.375 r’r’ = white = 0.0625 r = r’ =
  
• a square on a coordinate plane is translated 9 units down and 1 unit to the right. which function rule describes the translation? t1, –9(x, y) t–1, –9(x, y) t–9, 1(x, y) t–9, –1(x, y)
  
• if the discriminant of a quadratic equation is 4, which statement describes the roots?
  
• write the following expression as a single logarithm with coefficient 1. log910 − log9 1 2 − log94
  
• differentiate between the surface and ground water. describe the factors responsible for degradation of water
  
• however, in the absence of state laws, contracts can operate under , which is a group of laws that helps coordinate commercial laws between states.
  
• if 12 mol of lithium were reacted with excess nitrogen gas, how many moles of lithium nitride would be produced?