Find an ordered pair to represent t in the equation t=1/2u-v if u =(-1,4) and v = (3,-2)

225/100 of last years cost. write each fraction as a decimal and as a percent

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

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?