2. Holly collects video games. She starts with 3x³ games, for some numberx, and then buys another 7x⁴. She then gives away x², then sells 5x, and finally donates another 9 games. Write an expression for the number of games Holly now has in standard form A -9 + 7x4 - 5x + 3x3 - x2
B 3x3 – 5x + 7x4-9-X2
C 7x4 + 3x3 - x - 5x - 9
D -9-5x - x2 + 3x3 + 7x4​

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.