Astudent is attempting to simplify the expression below. sample mathematical work is shown. which statement best applies to the sample mathematical work? given 2003-01-05-00-00_files/i033.jpg, i first apply the distributive property, which yields the expression xy + yx + x – 3x – 3y. i can then collect like terms: since x – 3x = –2x, i have the expression xy + yx – 2x – 3y as my final answer. a. the student failed to properly apply the distributive property. b. the student collected two or more terms that were not like terms. c. the student failed to collect all like terms. d. the mathematical work shown above is correct.

You are measuring the dimensions of the floor in your bedroom because you are planning to buy new carpet. which unit of measure is the most appropriate to use in this situation?

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm