Aperson on on a moving sidewalk travels 24 feet in 7 seconds. the moving sidewalk has a length of180 feet. how long will it take to move from one end of the sidewalk to the other?

Which one ? is the answer and how to find this answer

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?

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible