1. Mary bought a shirt originally $19 for 15% off. The sales tax was 7.5%. What was Mary's total?
A. $14.94
B. $17.36
C. $3.06
D. $2.85
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One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

What is the value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.