Sam ordered 2 tacos and 3 enchiladas for lunch at the restaurant. his bill came to $7.80. if enchiladas were $2 each, write and solve a linear equation to find the cost of each taco.

Ineed to know the answer to this algebra question.

Questions 7-8. use the following table to answer. year 2006 2007 2008 2009 2010 2011 2012 2013 cpi 201.6 207.342 215.303 214.537 218.056 224.939 229.594 232.957 7. suppose you bought a house in 2006 for $120,000. use the table above to calculate the 2013 value adjusted for inflation. (round to the nearest whole number) 8. suppose you bought a house in 2013 for $90,000. use the table above to calculate the 2006 value adjusted for inflation. (round to the nearest whole number)

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?