The length of the sides of a square is given by the expression 4.8x + 2.4. Which expression represents the perimeter of the square? A.
4.8x + 2.4 + 4
B.
19.2x + 2.4
C.
8(2.4x + 1.2)
D.
4.8x + 9.6

50 points~ ! i have to turn this in tomarrow

Sioux co. replaced the roof on its existing building, therefore increasing the building's life by 10 years. the cost of the roof is considered a(n):

Amy is plan her school's new basketball court. the west edge of the basketball court is located on the line y = 5x + 2. the east edge cannot intersect with the west edge. on which line could the east edge be located? −y − 5x = 100 y + 5x = 100 −5x − y = 50 5x − y = 50