Helen Martin owns Ivanhoe, an educational tutoring center in Greenville, South Carolina. The center offers private tutoring in math, writing, and science. Information about the tutoring sessions is as follows:

	Math			Writing			Science
Session price		$33			$51			$25
Variable labor costs		13			31			12
Variable supplies cost		2			2			1
Session length		60	minutes		90	minutes		30	minutes
Number of sessions demanded per week		180			260			120

Since the company opened five years ago, demand has grown faster than the supply of qualified employees. Helen currently has enough employees to provide only 420 hours of tutoring each week

Calculate the total number of hours demanded per week. (Round answers to 0 decimal places, e.g. 5,275.)

		Hours needed
Math		enter a number of hours rounded to 0 decimal places
Writing		enter a number of hours rounded to 0 decimal places
Science		enter a number of hours rounded to 0 decimal places
Total		enter a total number of hours rounded to 0 decimal places