Which is the equation of a line perpendicular to the line with the equation: y = -3x + 5

A. Y= -3x -7
B. Y= 3x + 2
C. Y= -1/3x - 1/2
D. Y= 1/3x - 1/2

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction

Larry wants to buy some carpeting for his living room. the length of the room is 4 times the width and the total area of the room is 16 square meters. what is the length of the living room

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25