Question 5 of 10 If x=yand y = z which statement must be true?
A. X = 2
B. Z = X
C. -% -2
D. -X Z

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Write the rational number in lowest terms 99/-15

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.