F t > 0 , then √ ( t 2 + t ) ( t 3 + t 2 )/ ( t 2 + t ) + ( t 3 + t 2 ) =?

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?

27 is what percent of 108? 27 is % of 108

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?