On a piece of paper, use a protractor to construct a triangle with angle measures of 40 degrees and 60 degrees. what is the measure of the third angle? a.) 60 degrees b.) 80 degrees c.) 100 degrees d.) 180 degrees

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?