Solve the system of equations.
2x+ 2y + z = 8
5x + y + 5z = 3
5x + y + 3x = 5
a. (x = 34, y = - 27,2=-1)
b. (x = 33, y = -26,2 = 0)
c. (x= 35, y = -28,2=-2)
d. (x = 36, y = -29,2 = 1)

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?