If varies directly with and is 20/3 when = 8, which equation describes this relationship?

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?

If 25% of y is 30, what is 60% of y?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250