Use the graphical method to solve the following pair of equations.
x + y = 2
x = 5

The t-distribution is very much like the standard normal distribution except that the t-distribution ________.

A) has a smaller variance
B) has a smaller standard deviation
C) is bi-symmetrical
D) has a larger variance

Simplify the expression ${\log }_6{6}^{x^8}$ .

A) $x^8$
B) $8x^8$
C) $6x^8$
D) $x^6$
E) $8x^9$