What is the lateral surface of a rectangular prism with a length of 35.7 a width of 25.5 and a height of 15.1

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?