What is 68 + 72? Pls delete this question I am testing if it works

How many zeros does the function f(x)=4x3-x2+1 have

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?

Bring the fraction a/a-4 to a denominator of 16-a^2