Each of 5 boys ate 2/3 of a pizza. what is the total amount of pizza the boys ate

For the following sequence determine the common difference (if it is an arithmetic sequence) or the common ratio (if it is a geometric sequence).

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?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.