The expression 4a+2b gives the cost (in dollars) for a sandwiches and b bags of chips at a sandwich shop. a. The cost for 1 sandwich is $ and the cost for 1 bag of chips is $ . b. The total cost for 3 sandwiches and 3 bags of chips is $ . Question 2 c. Is $30 enough to buy 5 sandwiches and 6 bags of chips?

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

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yes because they have the same amount of green and blur marbles.

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the 3rd on is correct

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