Pretend the blue section is a pool and we want to tile all of the way around the pool. If the pool
measures n x n tiles, which formula shows the total
(T) number of tiles needed?
T = 5n
T = 4n
T= 4(n + 1)
T = 5(n + 1)

Please help

Simplify the expression. enter the correct answer.

∆abc is reflected across the x-axis and translated 2 units up to give the image ∆a'b'c' with coordinates a'(1, 1), b'(2, -1), c'(2, 1). what are the coordinates of the preimage ∆abc? a. a(-1, 1), b(-2, 3), c(-2, 1) b. a(1, 1), b(2, 3), c(2, 1) c. a(1, -3), b(2, -1), c(2, -3) d. a(1, -3), b(2, -5), c(2, -3)

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39