Guests at a recent party ate a total of fifteen hamburgers. each guest who was neither a student nor a vegetarian ate exactly one hamburger; no other guests ate hamburgers. if half of the guests were vegetarians, how many guests attended the party?
(1) the vegetarians attended the party at a rate of 2 students to every 3 non-students, half the rate for non-vegetarians.
(2) 30% of the guests were vegetarian non-students.

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?