Answer:
C $540
Step-by-step explanation:
2700 / 10 = 270 = 10%
270 x 2 = 540 = 20%
Answer:
B
Step-by-step explanation:
Try it -3 squared is 9 -4 squared is 16 , 9+16 = 25 so 
A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. Such a triple is commonly written (a, b, c), and a well-known example is (3, 4, 5). If (a, b, c) is a Pythagorean triple, then so is (ka, kb, kc) for any positive integer k.
Answer:
7.5 metres
Step-by-step explanation:
height : shadow
1.5 : 3
X : 15
X/15 = 1.5/3
X = 15/2
X = 7.5