Posted by sylvana on Tuesday, September 15, 2009 at 9:11pm.
The mean of 4 test scores is 90. What is the sum of the scores?

math  Ms. Sue, Tuesday, September 15, 2009 at 9:12pm
4 * 90 = ?

math  sylvana, Tuesday, September 15, 2009 at 10:12pm
360
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