11. The temperature was 81°F at 4PM and steadily decreased 3° each hour. What was the temperature at 8PM?

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?