The variable x represents the number of long-sleeve shirts nancy bought and the variable y represents the number of short-sleeve shirts she bought.

nancy bought 531 shirts for her business. she bought 2 times as many short-sleeve shirts as long-sleeve shirts.

how many of each type of shirt did she buy?

which system of equations models this problem?

{x+y=531y=2x

{x−y=531y=2x

{x+2y=531y=2x

{x+y=2y=531x

Find the difference (8ab+a+2) - (3ab+6)

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave