At 6 p. m., the temperature in phoenix az, t is the same as the temperature in tucson,
az. by 9 pm the temperature in phoenix has dropped 2 degrees and in tucson it has dropped 4 degrees .by 11 pm the temperature in phoenix has dropped another 3 degrees
a. represent each city 's temperature at 11 pm with an algebraic expression and abar model
b are the expressions that represent temperature in the two cities equivalent ? justify your answer

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Bonnie and bobby are saving money for a vacation. each friend starts with an amount and also saves a specific amount each week. bonnie created a table to show the total she has saved at the end of each week.. weeks 0 1 2 3 4 5 6 7 8 amount saved 12 16 20 24 28 32 36 40 44 bobby came up with the following equation to show the total, y, he has saved at the end of each week, x. y = 12x + 4 compare the rate at which each friend saves money. select the correct answer from the drop-down menu to complete the statement. the rate at which bobby is adding to his savings each week is $ more than the rate at which bonnie is adding to her savings each week.

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?