China issued the largest stamp ever, 210 mm long and 65 mm wide. find the ratio of length to width.

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Find the area of the unshaded square

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?