Thor travels 78 miles per hour. How long does it take him to travel 13 miles? Your answer should be in hours, accurate to at least the nearest tenth. ​

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?

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1