After you find the expression in question #2. Use the answer to find the value of x. The opposite of 4x and 3 + 4x

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?