Which expression is equivalent to 2/3x - 1/2y - 4/5

What is the measure of the smallest angle in the diagram? 15 29 32 45

How do i put 3(x+7) in distributive property

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?