When a survey of 800 people was done, 55% of those surveyed said they ate candy, 65% said they ate chips and 90% said they are hot dogs. What is the smallest possible number of people who said they ate candy, chips and hotdogs?

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Use the inverse of the function y=x^2-18x to find the unknown value [tex]y = \sqrt{bx + c \: + d} [/tex]

Pranza plotted point a in the coordinate plane below.