Answer:
100-5.25x 100-5.25(15)= 22.25
Step-by-step explanation:
(-18, 2)
To rotate a point by 90°:
R₉₀ (x, y) = (-y, x)
R₉₀ (1, 9) = (-9, 1)
To dilate by 2:
D₂ (x, y) = (2x, 2y)
D₂ (-9, 1) = (-18, 2)
im not sure