The difference between 3 times a number and 21

Rectangle bcde is similar to rectangle vwxy. what is the length of side vy? a) 1 7 b) 2 7 c) 3 7 d) 4 7

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Shannon drove for 540 minutes. if she traveled 65 miles per hour, how many total miles did she travel?