The dimensions of a square shaped room are altered so that one wall is increased by 9 feet and the other wall is decreased by 4 feet. The area of the resulting rectangular shaped room is 90 square feet. Find the original area of the room

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities