What is the exact value of the square root of 294 minus the square root of 24 plus the square root of 54

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

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?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer