Solve for the missing value in the proportion: 6/a = 18/27

A. 9
B.54
C.18
D.81

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

43lbs of tomatos cost $387. how much would 41lbs cost

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building