Solve the system of equations. x + y +z = 9
- 2x + y + 2z = 3
(x - 4y - z=2
A (0, 15, -6)
B (3,3,3)
C (4, -1, 6)
D (7, 1, 1)

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.