Find the unknown coordinates of the points in the figure given that triangle BDF is made from the mid-segments of triangle ACE.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

What is the perimeter of a rectangle if the length is 5 and the width is x?

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?