Atextbook costs $65.49 before tax. the tax on the textbook is 6.5%. what is the total cost of the textbook? round your answer to the nearest cent. enter your answer in the box.

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

1foot = 12 inches; 1 yard = 3 feet

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.